Section: Math

80)

The eight-sided figure is divided into 12 congruent isosceles right triangles that each have an area of 192 square centimeters. What is the perimeter (in centimeters) of the figure?

1. 16
2. 20
3. 96
4. 112

Answer 4 is correct. Congruent sides mean each part of a triangle that is not the hypotenuse would have to be equal. Since the area would be calculable by adding area for each triangle, you have to solve for that first (192/12=16). Equal sides would make that 8. From there, add each side around the perimeter of the shape.