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What is the surface area of a tetrahedron pyramid that has an equilateral base of 20 cm sides and slant edges of 26 cm?
Wiki User
∙ 7y ago
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
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoTotal surface area = 893.21 sq cm.
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What 3D shape has straight edges and no faces with a right angle?
A regular tetrahedron (an equilateral triangular pyramid).
How much does a tetrahedron edges have?
A tetrahedron triangular based pyramid has 6 edges, 4 faces and 4 vertices
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 does a tetrahedron?
A tetrahedron is a triangular based pyramid that has 6 edges, 4 faces and 4 vertices
What is the shape of tetrahedron?
A tetrahedron is a three-dimensional geometric shape with four triangular faces, six edges, and four vertices. Its shape resembles a pyramid, where each of the four faces is an equilateral triangle.
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.
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.
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 does a tetrahedron?
A tetrahedron is a triangular based pyramid that has 6 edges, 4 faces and 4 vertices
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.
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).
What is the shape of tetrahedron?
A tetrahedron is a three-dimensional geometric shape with four triangular faces, six edges, and four vertices. Its shape resembles a pyramid, where each of the four faces is an equilateral triangle.
What is the surface area of a tetrahedron pyramid when all its edges are 12 cm in length?
Surface area of the pyramid: 4*0.5*144*sin(60) = 249 square cm to 3 significant figures
