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

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A three-dimensional shape with all its four deals with as triangles is known as a triangular pyramid.

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

What isTriangular Pyramid?


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

Triangular Pyramid Nets

The net patternis different for different types of solids.Nets are usefultofind the surface area that ​​solids. A triangular pyramid netis a pattern that creates when its surface ar is to adjust flat, mirroring each triangle facet the a shape. The triangular pyramid netconsists of four triangles. The base of the pyramid is a triangle; the side deals with are likewise triangles.

Let us perform a tiny activity. Take it a sheet of paper.You have the right to observe two differentnets of a triangle pyramidshown below.Copy this ~ above thesheet of paper. Cut it along the edge and fold that as presented in the photo below. The folded record forms atriangular pyramid.

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Types of triangular Pyramid


Like any kind of other geometrical figure, triangle pyramids can additionally be classified into regular and also irregular pyramids. The different types of triangle pyramids are explained below:

Regular triangular Pyramid

A constant triangular pyramidhas equilateral triangles together its faces. Due to the fact that it is do of it is intended triangles, all itsinternal angles will measure 60°.

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Irregular triangular Pyramid

An irregular triangle pyramidalso has actually triangular faces, yet they space not equilateral. The internalangles in every plane add up to 180° together theyare triangular. Unless a triangular pyramidis specificallymentioned asirregular,all triangle pyramidsare assumed to beregular triangle pyramids.

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Right triangular Pyramid

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

Important Notes

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

Propertiesof a triangle Pyramid


Properties the a triangle pyramid assist us to determine a pyramid indigenous a given collection of figures quickly and also easily. The different Propertiesof a triangle Pyramid are:

It has 4 faces, 6 edges, and also 4 vertices.At every of the vertex, 3 edges meet.A triangular pyramidhas no parallel faces.Triangular Pyramidsare uncovered asregular, irregular, and right-angled.

Triangular Pyramid Formulas

There are miscellaneous formulas to calculation the volume, surface ar area, and also perimeter of triangle pyramids. Those formulae are offered below:


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

Triangular PyramidVolume = 1/3 × base Area × Height

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

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


Now think about a continual triangular pyramidmade the equilateral triangles of next a.


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Regular triangular 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 the a appropriate 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) = height Side.

Challenging Questions:

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

Related write-ups on triangle Pyramid

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


Example 1: Sid obtained to understand that two triangular pyramids to be congruent.He startedobserving themfor their congruency. If he inserted the base of both the triangle in a place to watch if theyoverlap, the 2 congruent triangle pyramidsstuck with each other along its base andformed a triangular bipyramid. How numerous faces, edges, and also vertices go this bipyramid have?

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Solution: If we openup theabove picture to watch the network of the triangular bipyramid,we have the right to observe this:

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

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

Solution: We know 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

≈14.73

∴The volume the thetriangular pyramid is 14.73 units3


Example 3: each edge that a constant triangular pyramidis of size 6 units. Discover its total surface area.

Solution: The complete surface area of a constant triangular pyramidof next ais:√3a2. Substituting a= 6, us get,

TSA =√3 × 62= √3 × 6 × 6

= 62.35

∴ full Surface Area = 62.35 units2


Example 4: While addressing questions about the triangular pyramid,Syna obtained stuck. Let's aid her the end to with the final answer. Here's the question:"The sum of the length of the edges of a continuous triangular pyramidis 60 units. Uncover the surface area of among its faces."

Solution: We know that atriangular pyramidhas 6 edges. And also it's provided to it is in a regular triangular pyramid. Therefore, the length of every edge is:60/6 = 10units. The surface ar area the one face of the triangular pyramid: