Question

The areas of two circles are in the ratio of 77 : 7. Find the ratio of their radii

Answer 1

Hope this helps u buddy...

Answer 2

Answer:

Area 1 = 77

2πr = 77

2 × 22/7 × r1 = 77

2 × 2/7 ×r1 = 7

4 × r1 = 49

r1 = 49/4

similarly,

r2 = 49/44

ratio of their radii = r1/r2

= 49×44/49×4

=11 : 1

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