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The ratio between area of two circles is 49 : 25. What will be the ratio of their radius? |
8 : 5 9 : 5 7 : 5 7 : 6 |
7 : 5 |
Ratio of Area = \(\pi \) (r1)2 : \(\pi \)(r2)2 = (r1)2 : (r2)2 ⇒ (r1)2 : (r2)2 = 49 : 25 ⇒ r1: r2= 7 : 5 Ratio of radius = 7 : 5 |
