Question

Find the area and the perimeter of the shaded region in figurer<br />The diamensions are in centimetres<br />​

Answer 1

Answer:

R.E.F image 

ABCD square 

area of ABCD =(21)2=441cm2

area of semi circle =2π(221)2=2×4π×441

=1122×2×4441 

=11×463 

area of remaining portion :

=441−2(11×463)

=97.5