answersLogoWhite

0

Base area: 0.5*20*20*sin(60) = 173.2050808

Height of triangular faces using Pythagoras' theorem: 24

Area of the 3 faces: 3*0.5*20*24 = 720

Total surface area: 173+720 = 893 square cm rounded to 3 significant figures

User Avatar

Wiki User

8y ago

What else can I help you with?

Related Questions

What is a solid figure with 6 edges?

A tetrahedron is a solid figure with 6 edges. There's no such thing as solid edges. A tetrahedron is a triangular pyramid, with 4 vertices, 6 edges and 4 triangular faces. In a regular tetrahedron (the first Platonic solid) all triangles are equilateral.


What 3D shape has straight edges and no faces with a right angle?

A regular tetrahedron (an equilateral triangular pyramid).


Are all faces of a tetrahedron congruent explain?

A tetrahedron is a triangular based pyramid that has 4 equilateral triangle faces, 6 edges and 4 vertices.


What are the elements of the foam tetrahedron?

The foam tetrahedron consists of four equilateral triangles connected along their sides, forming a pyramid-like shape with a triangular base and three triangular faces. Each face of the tetrahedron is an equilateral triangle, and the edges of the foam tetrahedron are all of equal length.


How much does a tetrahedron edges have?

A tetrahedron triangular based pyramid has 6 edges, 4 faces and 4 vertices


How many vertices and edges are on a triangle pyramid?

A triangular pyramid, or tetrahedron, has 4 vertices and 6 edges.


How many edges does a tetrahedron?

A tetrahedron is a triangular based pyramid that has 6 edges, 4 faces and 4 vertices


What is the definition of tetrahedron?

A tetrahedron is a polyhedron with four triangular faces, six edges, and four vertices. It is a three-dimensional shape formed by connecting four equilateral triangles at their edges, resembling a pyramid with a triangular base.


Which solid has 1 triangular 6 edges?

A triangular pyramid or tetrahedron.A triangular pyramid or tetrahedron.A triangular pyramid or tetrahedron.A triangular pyramid or tetrahedron.


What is the surface area to the nearest integer of a tetrahedron whose edges add up to 42 cm showing work?

A tetrahedron is a pyramid with 4 equilateral triangular faces, 6 edges and 4 vertices. Each edge: 42/6 = 7 cm Total surface area: 0.5*7*7*sin(60 degrees)*4 = 85 square cm to the nearest integer


How many edges dooes a regular tetrahedron have?

A triangular based pyramid which is a tetrahedron has 4 faces, 6 edges and 4 vertices


What has six edges and four vertices?

A tetrahedron (triangular pyramid).