In-the-figure-we-have-7-circles-having-the-same-radius-Determine-the-ratio-between-the-perimeter-of-one-of-the-circle-and-the-perimeter-of-the-gray-region-

Question Number 68930 by Maclaurin Stickker last updated on 17/Sep/19

In the figure we have 7 circles having

the same radius . Determine the ratio

between the perimeter of one of the

circle and the perimeter of the gray region .

Commented by Maclaurin Stickker last updated on 17/Sep/19

Commented by Rasheed.Sindhi last updated on 17/Sep/19

\frac{2 π r}{6} \times 12 = 4 π r

2 π r : 4 π r = 1 : 2

Commented by Maclaurin Stickker last updated on 17/Sep/19

C o r r e c t .