A triangle pyramid is a geometric solid through a triangular base, and all three lateralfaces are additionally triangles v a common vertex. The tetrahedron is a triangle pyramid v equilateral triangle on every face. 4 triangles form a triangle pyramid.Triangular pyramids room regular, irregular, and also right-angled.

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A three-dimensional shape with all its four faces as triangle is well-known as a triangle pyramid.

1.What isTriangular Pyramid?
2.Types of triangular Pyramid
3.Propertiesof a triangular Pyramid
4. Triangular Pyramid Formulas
5. Solved examples onTriangular Pyramid
6.Practice questions on triangular Pyramid
7.FAQs on triangular Pyramid

What isTriangular Pyramid?

A triangle pyramid is a 3D shape, all of the deals with of which space made in the type of triangles. A triangular pyramid is a pyramid with a triangle base and bounded by 4 triangular deals with where 3 faces meet in ~ one vertex. Thebase is a right-angle triangle in a best triangular pyramid, when other deals with areisosceles triangles.

Triangular Pyramid Nets

The net patternis different for different varieties of solids.Nets room usefultofind the surface ar area of ​​solids. A triangular pyramid netis a pattern that forms when its surface ar is to adjust flat, showing each triangular facet of a shape. The triangular pyramid netconsists of 4 triangles. The base of the pyramid is a triangle; the side faces are likewise triangles.

Let us do a small activity. Take it a sheet of paper.You can observe 2 differentnets the a triangle pyramidshown below.Copy this ~ above thesheet of paper. Cut it along the edge and also fold it as displayed in the picture below. The folded file forms atriangular pyramid.


Types of triangle Pyramid

Like any other geometrical figure, triangle pyramids can also be classified right into regular and irregular pyramids. The different species of triangle pyramids are described below:

Regular triangle Pyramid

A consistent triangular pyramidhas it is provided triangles together its faces. Since it is make of equilateral triangles, every itsinternal angles will certainly measure 60°.


Irregular triangle Pyramid

An irregular triangular pyramidalso has actually triangular faces, however they are not equilateral. The internalangles in each plane include up come 180° as theyare triangular. Uneven a triangular pyramidis specificallymentioned asirregular,all triangle pyramidsare assumed to beregular triangular pyramids.


Right triangle Pyramid

The best triangular pyramid (a three-dimensional figure) has a right-angle triangle base and the apex aligned above the center of the base. That has1 base, 6 edges, 3 faces, and also 4 vertices.

Important Notes

A triangular pyramidhas 4 faces, 6 edges, and 4 vertices.All four faces are triangular in shape.

Propertiesof a triangular Pyramid

Properties that a triangle pyramid help us to identify a pyramid native a given set of figures quickly and easily. The various Propertiesof a triangular Pyramid are:

It has actually 4 faces, 6 edges, and 4 vertices.At each of its vertex, 3 edges meet.A triangle pyramidhas no parallel faces.Triangular Pyramidsare discovered asregular, irregular, and right-angled.

Triangular Pyramid Formulas

There are assorted formulas to calculation the volume, surface ar area, and perimeter of triangular pyramids. Those formulae are given below:


To find the volume that a pyramidwith a triangle base, main point the area of ​​the triangular basic by the height of the pyramid (measured from basic to top). Then divide that product through three.

Triangular PyramidVolume = 1/3 × base Area × Height

The slant elevation of a triangle pyramid is the distance from its triangular base follow me the center of the confront to the apex.To identify the surface ar area that ​​a pyramid through a triangle base, add the area that ​​the base and the area of ​​all sides.

Triangular Pyramid surface Area(Total) = basic Area + 1/2(Perimeter × Slant Height)

Now consider a continuous triangular pyramidmade the equilateral triangle of next a.


Regular triangle Pyramid Volume = a3/6√2

Regular triangle PyramidSurface Area(Total) = √3a2

Right triangle Pyramid Formulas

Surface AreaofaRight triangle Pyramid ((A_s)) = 1/2 ((h_b) × a) + 3/2 (a × (h_s))

The volume that a right Triangular Pyramid (V) = 1/6× (h_b) × a × h = 1/3× (A_b) × h

Where (A_s) = surface Area,(A_b) = basic Area, V= Volume, a= Edge, h= Height,(h_b) = height Base, and(h_s) = elevation Side.

Challenging Questions:

Rohan hasa tent the is shaped likean irregular triangular pyramid. The volume of the time is v cubic cm, and also the elevation is h cm. What would be the areaof the basic of histent?

Related short articles on triangle Pyramid

Check out these interesting articles on the triangular pyramids. Click to understand more!

Example 1: Sid gained to understand that two triangular pyramids to be congruent.He startedobserving themfor their congruency. If he inserted the basic of both the triangle in a position to view if theyoverlap, the 2 congruent triangular pyramidsstuck together along its basic andformed a triangle bipyramid. How numerous faces, edges, and vertices go this bipyramid have?


Solution: If we openup theabove image to check out the network of the triangle bipyramid,we have the right to observe this:


There are6 triangle faces, 9 edges, and also 5 vertices. ∴ triangular bipyramid has actually 6 triangular faces, 9 edges, and also 5 vertices.

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Example 2: find the volume that a constant triangular pyramidwith a side size measuring5 units. (Round turn off the answer to 2 decimal places)

Solution: We understand that for a triangular pyramidwhose next is a volume is:a3/6√2. Substituting a = 5, we get

Volume = 53/6√2

= 125/8.485


∴The volume the thetriangular pyramid is 14.73 units3

Example 3: every edge that a consistent triangular pyramidis of length 6 units. Find its complete surface area.

Solution: The complete surface area the a consistent triangular pyramidof side ais:√3a2. Substituting a= 6, we get,

TSA =√3 × 62= √3 × 6 × 6

= 62.35

∴ full Surface Area = 62.35 units2

Example 4: While solving questions about the triangle pyramid,Syna gained stuck. Let's aid her out to reach the last answer. Here's the question:"The sum of the length of the edge of a constant triangular pyramidis 60 units. Find the surface ar area of one of its faces."

Solution: We recognize that atriangular pyramidhas 6 edges. And it's provided to it is in a consistent triangular pyramid. Therefore, the size of every edge is:60/6 = 10units. The surface area of one confront of the triangle pyramid: