Question

Find the area of the shaded figures?

Answer 1

`A) 55, B) 2000`

Explanation:

A) top diagram :

Shaded area = Area ABCD - Area ABC - Area ADE
`=(18xx10)-(1/2xx18xx10)-(1/2xx10xx7)`
`=180-90-35`
`=55`

Or shaded area `=1/2xx(CE)xx(AD)=1/2*(18-7)*10=1/2*11*10=55`

B) Bottom diagram:

Shaded area `=(80xx95)-(1/2xx80xx45)-(1/2xx80xx95)`

`=7600-1800-3800`
`=2000`