Question

17. Find the area of the shaded portions in the following figures :

please answer as fast as possible ​

Answer 1

Answer:

Given in fig.

SR=10+10=20cm

QR=20cm

TS=10cm

So,

PT=10cm

PQ=20cm

As we can see that PQRS is square

So,

Area of PQRS =20×20

=400cm²

Area of triangle QRU=1/2×10×20

=100cm²

Area of triangle TSU=1/2×10×10

=50cm²

Area of triangle QPT=1/2×10×20

=100cm²

Now,

Area of shaded region = Area of square -(Area of triangle QRU + Area of triangle TSU + Area of triangle QPT )

=400−(100+50+100)

=400−250

=150cm²

So,

Area of shaded portion =150cm²

Answer 2

Answer:

the answer will be 156cmsquare