Question

10. Find the area of the shaded portion.
4 cm
6 cm
8 cm
12 cm​

Answer 1

Answer:

Refer to the attachment above

Answer 2

Answer:

20cm^2

Step-by-step explanation:

Let the bigger triangle be ABC, right angled at B

area of triangle ABC= 1/2*base*height

=1/2*12*6 = 36cm^2

and let small triangle be PQR

area of triangle PQR = 1/2*8*4 = 16cm^2

therefore, area of shaded region is

ar(∆ABC)-ar(∆PQR)

=36-16

= 20cm^2