Question
MNPQ is a rectangular piece of paper with a perimeter of 220 cm. MN is 80 cm and point R is the mid-point MQ. It is folded along the dotted line as shown in Figure 1. What is the area of the shaded triangle?
2 m

Click button first when a symbol is required. X

MNPQ is a rectangular piece of paper with a perimeter of 220 cm. MN is 80 cm and point R is the mid-point MQ. It is folded along the dotted line as shown in Figure 1. What is the area of the shaded triangle?