Question

In Fig.below, find the area of parallelogram ABCD if the area of shaded triangle is 9 cm2.

Answer 1

Answer:

42

Step-by-step explanation:

Find the height of the triangle: 1/2*bh=a

1/2*3*h=9

3h=18

h=6

Therefore the parallelogram has area 6*7=42

Answer 2

Answer:

area of shaded triangle=area of right triangle=1/2×BE×AE=9

1/2×3×AE=9

AE=9×2/3

AE=3×2=6

ARA OF PARELLELOGRAM= BASE×HEIGHT=AE×BC=6×7=42.