Question

20cm 12cm 8cm 10cm draw the shaded figure​

Answer 1

Step-by-step explanation:

In right △AED, using Pythagoras theorem,

AD

2

=AE

2

+DE

2

=9

2

+12

2

=81+144=225cm

⇒AD=

225

=15cm=diameter

Required area = ar. ABCD + ar. semi-circle - ar △AED=(20×15)+

2

1

×

7

22

×(

2

15

)

2

−

2

1

×9×12

=300+88.3928−54=334.3928cm

2