Question:
In Figure 1, PQRS is a rectangular piece of paper. After 6 identical triangles are cut off from the paper, the remaining paper is shown in Figure 2. The area of the remaining paper is 279 cm².
(a) What is the area of each triangle that was cut out?
(b) The perimeter of Figure 2 is 54 cm longer than the perimeter of Figure 1. What is the perimeter of each triangle?
Solution:
