Question

Find the area. ( Hint: First find x . )

Answer 1

Explanation:

in question no. 17

base=x

perpendicular=9

hipotanus=15

by applying pythagorus

(x)² + (9)² = (15)²

x=√(15)²-(9)²

x= √225-81

x=√144 = 12

now area of triangle = 1/2 ×base×height

= 1/2 × 12 × 9 = 54

area of figure 17 = 54 × 2 = 108