If it is a 4 faced tetrahedron pyramid then its complete surface area is 4*80 =320 square centimetres
surface area of a spere=4*pie*r2 when r (radius)=5 pie=22/7 surface area=4*22/7*5*5 =2200/7 =314.2 dm2
The surface area of a sphere with a radius of 5m is 314.2m2
Surface area = 20*pi square units
The surface area of a cube with an edge length of 5 inches is 150 square inches.
A regular tetrahedron, with edges of length 1 units, has a total surface area of sqrt(3) square units.
The same volume of an object, The simplest regular tetrahedron polyhedron, calculate the surface area. The surface area is pentahedral small surface area than the regular tetrahedron Regular hexahedron surface area than the surface area is small pentahedral . . . . If it is known is N-face surface area of ​​the body, there are N +1 is smaller the surface area of ​​the surface When N tends to infinity for a long time, Serve the sphere surface. ------mecose
It depends on whether or not the tetrahedron is regular. There is nothing in the question to indicate that it might be regular. In that case the easiest way to calculate the surface area is to sum the areas of each of its 4 faces.
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If it is a 4 faced tetrahedron pyramid then its complete surface area is 4*80 =320 square centimetres
If its a triangular based pyramid (tetrahedron) then it will have 4 equilateral triangle faces and so find the area of one face and multiply it by 4 to give the total surface area.
A tetrahedron is a solid figure with four triangular faces. As these may or may not be regular (all the same), the formula is to add the area of all four together. The formula for the area of a triangle is 1/2(base x height).
Surface area of the pyramid: 4*0.5*144*sin(60) = 249 square cm to 3 significant figures
A tetrahedron is a triangular based pyramid and its area is worked out as for a triangle that is 0.5*base*height.
no a tetrahedron actually has 5 sides and 5 faces
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The volume(cm3) of a tetrahedron is 1/3 (area of the base)X height