Question

plz do this step by step

you have to find the shaded region

Answer 1

hey, mate here is ur sol


All the three shaded region's are half circle

so, these areas are. 1/2{π(r1)²+(πr2)²+(πr3)²}

r1=2cm
r2=2.5cm
r3=1.5cm

Answer 2

Ar of quadrant with radii 3 cm-ar of triangle=22/7×9-6=3(66/7-2)=ar of 3
Ar of 2=22/7×1.5^2
Ar of 1 = 22/7×2^2
Total ar=22/7(4+225/100)+18
=22/7×625+18..do the rest hope this helps