find the area of the shaded region .......
no irrelevent ans ......
genuine ans gets the brainliest
Answers
Step-by-step explanation:
area of shaded region = Area of semicircle with diameter AC - Area of quadrant ABC
Area of quadrant = 1/4 π r^2
=1/4 × 22/7 × 21 ×21
= 1/2 × 11 ×3×21
= 21×21/2
=441/2
= 22.5 cm^2
Area of semicircle = 1/2πr^2 .
=1/2 ×22/7×r^2
to find the radius of semicircle by PGT
h^2=p^2+b^2
h^2 = 28^2+21^2
h^2 = 784+441
h^2= 1225
h= √1225
h= 35
r=d/2
r= 35/2
r= 17.5
=22.5-17.5
= 5cm^2....
please mark it as brainlist answer...
=