# Volume of a triangular pyramid using integrals

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. I have a maths test coming up, and I just can't seem to solve a question on finding volumes of solids via integration. Here's the question:. As straightforward as it seems, I am very confused.

I would really be grateful for some help. If possible, please help me understand the solution using a simple diagram.

## Measuring the Volume of a Pyramid

It doesn't in fact matter if the vertex lies symmetrically above the base - if it does the triangle will be isosceles, but do another sketch too where it isn't and see that the calculation comes out the same. If you work out the diagram for this one yourself, I'm sure you will be able to work out others. Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered.

Finding the volume of a rectangular-based pyramid using calculus? Ask Question. Asked 4 years, 8 months ago. Active 4 years, 8 months ago. Viewed 12k times. Here's the question: Find the volume of a pyramid with height h and rectangular base with dimensions b and 2b. Thanks a lot. John John 49 1 1 gold badge 1 1 silver badge 7 7 bronze badges. You can certainly pose questions here, though homework or upcoming test questions are strongly discouraged. You have to show your effort in solving them otherwise you will un-neccsarily get downvotes. Usually people will help you as long as you show some effort. I can assure you that this is not a homework problem, but a revision problem for my test. Since I have only been working with circular cross-sections and solids, I am really stuck and do not know where to start with this.

Active Oldest Votes. The question actually asks to find the volume using calculus integration. Introduction to Volumes by Similar Cross-Section: Square Pyramid

The Overflow Blog. Q2 Community Roadmap. The Overflow How many jobs can be done at home? Featured on Meta.Suppose that you want to find the volume of a pyramid with a 6-xunit square base and a height of 3 units.

### How do you find the volume of a pyramid using integrals?

Geometry tells you that you can use the following formula:. The meat-slicer method, however, provides an approach to the problem that you can generalize to use for many other types of solids. To start out, you skewer this pyramid on the x -axis of a graph, as shown in the figure. Notice that the vertex of the pyramid is at the origin, and the center of the base is at the point 3, 0. Find an expression that represents the area of a random cross section of the pyramid in terms of x. So generally speaking, the area of the cross section is:.

Use this expression to build a definite integral that represents the volume of the pyramid. This is the same answer provided by the formula for the pyramid. But this method can be applied to a far wider variety of solids.

Measuring the Volume of a Pyramid. About the Book Author Mark Zegarellia math tutor and writer with 25 years of professional experience, delights in making technical information crystal clear — and fun — for average readers.The pyramid volume calculator will provide you the volume of the pyramid based on the triangle height, base and pyramid height.

The calculator will add each new pyramid volume you enter to all you to calculate the volume of several pyramids using the same calculator without refreshing the page. Note that the volume of a Triangular pyramid is calculated differently to that of a Square Pyramid. Use the volume of a Square Pyramid calculator for appropriate volume calculations.

A pyramid is a [three-dimensional solid object] polyhedron formed by connecting a polygonal base and to a point, called the apex. Note: Remember to use the same measurement unit for each dimension when calculating the volume of an object.

The online Triangular Pyramid calculator below will automatically calculate the volume of the Triangular Pyramid based on the measurements you enter.

## volume of a pyramid using integration

You will also have a running total which builds as you enter new dimensions into the volume calculator. Triangular Pyramid Volume Calculator The pyramid volume calculator will provide you the volume of the pyramid based on the triangle height, base and pyramid height.Menu Math Help Forum. Physics Help. Chemistry Help. Thread starter gammaman Start date Mar 9, Tags integration pyramid volume. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

Feb 0. How would I find the volume of a pyramid, or any shape, using integration? Say I have a pyramid with height and a base of side How would I find the volume using integration?

Apr Atlanta, GA. A picture is worth words, so here's words for you The cross sectional area is going to be a square. This square forms a "miniature" pyramid that is a scaled down model of the original. Reactions: HallsofIvy and Amer. Calculus Apr 13, Using vectors to find the volume of a pyramid Trigonometry Mar 17, Similar threads Volume of Hexagonal Pyramid - Using Integration from 0-h Calculate volume of irregular triangular pyramid using differences between prisms Regular hexagonal pyramid-maximum volume?

Using vectors to find the volume of a pyramid. Top Bottom.

### Triangular Pyramid Volume Calculator

Volume of Hexagonal Pyramid - Using Integration from 0-h. Jul 26, Calculate volume of irregular triangular pyramid using differences between prisms.

Jul 5, Regular hexagonal pyramid-maximum volume? Apr 13, Mar 17, By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. Never mind, I found the mistake I was making, just a simple integral mistake but it was the right procedure.

Thank you for viewing! Here is an alternative computation using a single variable integral that confirms your result. The following figure represents the given pyramid. This is entirely correct. Here is a geometric check. Sign up to join this community. The best answers are voted up and rise to the top.

Home Questions Tags Users Unanswered. Find the volume using triple integrals Ask Question. Asked 6 years, 10 months ago. Active 6 years, 9 months ago. Viewed 2k times.

A regular pyramid is a pyramid with a regular-polygon base, whose peak is directly above the center of its base. The lateral faces of a regular pyramid are all congruent. Most pyramids in geometry books are regular pyramids. You can get the height by solving right triangle PZA. The lateral edges of a regular pyramid are congruent; thus, the hypotenuse of triangle PZA, line PZ, is congruent to line RZ, so its length is also Triangle PZA is thus a triangle blown up to twice its size, namely a triangle, so the height, line AZ, is 8 or you can use the Pythagorean Theorem to get line AZ.

Because the diagonals of a square are equal, both of them are 12, and you have what you need to use the kite area formula:. Mark Ryan is the founder and owner of The Math Center in the Chicago area, where he provides tutoring in all math subjects as well as test preparation. Calculate the Volume of a Pyramid.

About the Book Author Mark Ryan is the founder and owner of The Math Center in the Chicago area, where he provides tutoring in all math subjects as well as test preparation.If we can't tunnel through the Earth, how do we know what's at its center? A lady introduce her husband's name with saying by which can stop or move train what is that name. Give points yo advocate thst biology is linked with physics chemistry mathsmatics geography.

All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed. Unanswered Questions. Math and Arithmetic. How to calculate the volume of pyramid with integration? Asked by Royce Homenick. We need you to answer this question! If you know the answer to this question, please register to join our limited beta program and start the conversation right now! Asked in Math and Arithmetic, Geometry Why is the volume of pyramid is only one third of the volume of the prism?

This is easiest shown through integration. If you don't know how to do integration, divide the pyramid into many thin layers, and assume that each is a rectangular block. Try to do this experiment with the help of a spreadsheet like Excel. Asked in Math and Arithmetic, Geometry How do you calculate the volume of triangular pyramid? Asked in Geometry How do you calculate the volume of a square based pyramid?

Asked in Software and Applications non-gameCalculus Applications of integral calculus? Integration can be used to calculate the area under a curve and the volume of solids of revolution. Asked in Math and Arithmetic, Algebra, Geometry What information do you need to calculate the volume of a pyramid? If you do not have the vertical height you may be able to calculate it if you have the slant height and the base is a well behaved polygon. If neither, but the pyramid is made of insoluble material that is non-absorbent, you should be able to calculate its volume by measuring the volume of liquid that it displaces when it is submerged.

Asked in Math and Arithmetic How do you prove formula for volume of pyramid? This is easiest done with integral calculus. The basic idea is to divide the pyramid into lots of thin, flat, parallel slabs, calculate the volume of each, and add it up.

By integration - you divide the figure into many thin slices, and calculate the volume of each slice individually. The volume of each slice, again, can be calculated by integration: divide it into thin rectangles, and calculate the area of each rectangle.