The tetrahedron has a surface area of 20 m2 . What is the area of one face of the tetrahedron? (1 point) Responses 20 m2 20 m squared 15 m2 15 m squared 10 m2 10 m squared 5 m2 5 m squared

Answer 1

A tetrahedron has 4 triangular faces. If the total surface area is 20 m², the area of one face can be calculated by dividing the total surface area by the number of faces.

\[ \text{Area of one face} = \frac{\text{Total Surface Area}}{\text{Number of Faces}} = \frac{20 , \text{m}^2}{4} = 5 , \text{m}^2 \]

So the area of one face of the tetrahedron is 5 m².