The tetrahedron has a surface area of 20 m2 . What is the area of one face of the tetrahedron?
10 m2
5 m2 * MY ANSWER IS IT CORRECT
15 m2
20 m2
1 answer
The correct answer is 5 m2. Each face of a tetrahedron is a triangle, and a tetrahedron has 4 faces. Each face has the same area, so the area of one face of the tetrahedron is 1/4 of the total surface area. Therefore, 20 m2 divided by 4 is 5 m2.