Question

A ballet teacher wants to divide his square classroom in half diagonally with masking tape. How much tape will he need if the side length of the classroom is 40 ft?

Answer 1

Maybe use pythagorean theorem?

Answer 2

First, draw a rectangle. Label the width and the length. Then, draw a diagonal across the entire rectangle. This forms two right triangles. This diagonal is the hypotenuse that both right triangles share, one for each side. To find the area of a triangle use the formula: A = b * h/2. @trruhgnh