The tetrahedron has a surface area of 20 m2 . What is the area of one face of the tetrahedron?

Question

10 m2 10 m squared 5 m2 5 m squared 20 m2 20 m squared 15 m2

Answer 1

5 m2

Since a tetrahedron has 4 faces, each face would have an area of 1/4 of the total surface area of the tetrahedron. Therefore, the area of one face would be 20 m2 / 4 = 5 m2.