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

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A three-dimensional shape with every its four deals with as triangles is 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 instances 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 room made in the form of triangles. A triangular pyramid is a pyramid with a triangular base and bounded by 4 triangular faces where 3 faces meet in ~ one vertex. Thebase is a right-angle triangle in a ideal triangular pyramid, while other deals with areisosceles triangles.

Triangular Pyramid Nets

The network patternis various for different types of solids.Nets are usefultofind the surface ar area that ​​solids. A triangle pyramid netis a pattern that develops when its surface is laid flat, showing each triangle facet the a shape. The triangle pyramid netconsists of four triangles. The base of the pyramid is a triangle; the side encounters are also triangles.

Let us perform a little activity. Take it a paper of paper.You deserve to observe 2 differentnets the a triangle pyramidshown below.Copy this top top thesheet the paper. Reduced it follow me the edge and fold that as shown in the picture below. The folded paper forms atriangular pyramid.

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Types of triangle Pyramid


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

Regular triangle Pyramid

A regular triangular pyramidhas it is intended triangles together its faces. Due to the fact that it is made of it is provided triangles, all itsinternal angles will certainly measure 60°.

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Irregular triangular Pyramid

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

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Right triangular Pyramid

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

Important Notes

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

Propertiesof a triangle Pyramid


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

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

Triangular Pyramid Formulas

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


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

Triangular PyramidVolume = 1/3 × basic Area × Height

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

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


Now consider a continual triangular pyramidmade that equilateral triangles of side a.


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Regular triangular Pyramid Volume = a3/6√2

Regular triangle PyramidSurface Area(Total) = √3a2

Right triangular Pyramid Formulas

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

The volume of a best 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\\) = elevation Base, and\\(h_s\\) = elevation Side.

Challenging Questions:

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

Related write-ups on triangular Pyramid

Check out these interesting write-ups on the triangular pyramids. Click to know more!


Example 1: Sid acquired to understand that 2 triangular pyramids to be congruent.He startedobserving themfor your congruency. When he inserted the base of both the triangle in a position to view if theyoverlap, the two congruent triangle pyramidsstuck with each other along its basic andformed a triangle bipyramid. How countless faces, edges, and also vertices does this bipyramid have?

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

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

See more: How Many Square Feet Are In A 10X10 Room, What Is The Square Feet Of A 10X10 Room


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

Solution: We know that because that a triangular pyramidwhose side is a volume is:a3/6√2. Substituting a = 5, us get

Volume = 53/6√2

= 125/8.485

≈14.73

∴The volume of thetriangular pyramid is 14.73 units3


Example 3: each edge the a continual triangular pyramidis of size 6 units. Find its total surface area.

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

TSA =√3 × 62= √3 × 6 × 6

= 62.35

∴ complete Surface Area = 62.35 units2


Example 4: While addressing questions about the triangular pyramid,Syna acquired stuck. Let's help her out to reach the final answer. Here's the question:\"The sum of the size of the edge of a regular triangular pyramidis 60 units. Find the surface ar area of among its faces.\"

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