Question

write please answer me.

Answer 1

The radius of big semi circle is 3+3+3/2=4.5
Now the area of big semi circle is =πr2/2
=22/7×4.5×4.5/2
=31.82
Now the area of full circle is = πr2
=22/7×2.5×2.5
=17.67
Now area of the 2 semi circles is =πr2
= 22/7×1.5×1.5
=7.07
The area of small semicircle outside large semicircle is. = 22/7×1.5×1.5/2
= 3.53
The area of shaded region is =
31.8+3.53-24.74. =35.33-24.74
=12.375