A triangle pyramid is a geometric solid through a triangle base, and also all 3 lateralfaces are additionally triangles v a usual vertex. The tetrahedron is a triangular pyramid v equilateral triangles on every face. 4 triangles form a triangular pyramid.Triangular pyramids room regular, irregular, and right-angled.

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A three-dimensional shape with every its four encounters as triangles is well-known as a triangle pyramid.

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

What isTriangular Pyramid?

A triangular 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 through a triangular base and bounded by four triangular deals with where 3 deals with meet at one vertex. Thebase is a right-angle triangle in a appropriate triangular pyramid, if other faces areisosceles triangles.

Triangular Pyramid Nets

The net patternis various for different varieties of solids.Nets are usefultofind the surface ar area the ​​solids. A triangle pyramid netis a pattern that creates when its surface ar is laid flat, reflecting each triangular facet the a shape. The triangle pyramid netconsists of four triangles. The basic of the pyramid is a triangle; the side faces are likewise triangles.

Let us do a little activity. Take it a sheet of paper.You deserve to observe 2 differentnets of a triangular pyramidshown below.Copy this ~ above thesheet of paper. Reduced it follow me the edge and also fold the as shown in the photo below. The folded document forms atriangular pyramid.


Types of triangular Pyramid

Like any type of other geometrical figure, triangular pyramids can additionally be classified into regular and irregular pyramids. The different varieties of triangular pyramids are defined below:

Regular triangle Pyramid

A consistent triangular pyramidhas it is provided triangles as its faces. Since it is made of equilateral triangles, all itsinternal angles will measure 60°.


Irregular triangle Pyramid

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


Right triangular Pyramid

The right triangular pyramid (a three-dimensional figure) has a right-angle triangle base and the apex aligned over the facility of the base. The 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 triangle Pyramid

Properties of a triangle pyramid help us to determine a pyramid native a given collection of numbers quickly and easily. The various Propertiesof a triangle Pyramid are:

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

Triangular Pyramid Formulas

There are various formulas to calculate the volume, surface area, and perimeter of triangle pyramids. Those formulae are offered below:


To discover the volume that a pyramidwith a triangular base, multiply the area the ​​the triangular basic by the height of the pyramid (measured from base to top). Then divide that product by 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 facility of the confront to the apex.To identify the surface ar area of ​​a pyramid with a triangle base, include the area the ​​the base and the area that ​​all sides.

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

Now take into consideration a consistent triangular pyramidmade that equilateral triangle of next a.


Regular triangular Pyramid Volume = a3/6√2

Regular triangle PyramidSurface Area(Total) = √3a2

Right triangular Pyramid Formulas

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

The volume of a ideal Triangular Pyramid (V) = 1/6× \(h_b\) × a × h = 1/3× \(A_b\) × h

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

Challenging Questions:

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

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Example 1: Sid got to understand that 2 triangular pyramids were congruent.He startedobserving themfor your congruency. If he put the base of both the triangles in a place to see if theyoverlap, the two congruent triangular pyramidsstuck with each other along its basic andformed a triangular bipyramid. How countless faces, edges, and also vertices does this bipyramid have?


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


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

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Example 2: uncover the volume the a regular triangular pyramidwith a side length measuring5 units. (Round off the answer to 2 decimal places)

Solution: We know that because that 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 of thetriangular pyramid is 14.73 units3

Example 3: every edge the a constant triangular pyramidis of length 6 units. Discover its full surface area.

Solution: The complete surface area that a continual triangular pyramidof next ais:√3a2. Substituting a= 6, we get,

TSA =√3 × 62= √3 × 6 × 6

= 62.35

∴ total Surface Area = 62.35 units2

Example 4: While fixing questions about the triangle pyramid,Syna got stuck. Let's assist her the end to with the final answer. Here's the question:"The sum of the size of the edge of a consistent triangular pyramidis 60 units. Discover the surface area of one of its faces."

Solution: We recognize that atriangular pyramidhas 6 edges. And also it's offered to be a constant triangular pyramid. Therefore, the length of every edge is:60/6 = 10units. The surface area of one confront of the triangular pyramid: