Question

3. From equal circles, each of
radius 7 cm touch each other.
Find the area between them​

Answer 1

Step-by-step explanation:

Let the side of square is a.

∴ a=7+7=14cm

⇒ Area of square =a×a

=(10)×(10)

=100cm sq.

⇒ r=7cm

⇒ Area of circle =πr×r

=3014×(7)×(7)

=153.86cm.sq.

⇒ Area of quadrant inside square = 1/4×πr×r

=

1/4×153.86cm.

⇒ Area of shaded region = Area of square - 4× Area of quadrant.

∴ Area of shaded region =100−4×1/4×153.86

∴ Area of shaded region =100−153.86= -53.86cmsq