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दो वृत्तों की परिधियों का अनुपात 2 : 3 है तो उनकी त्रिज्याओं का अनुपात है

(A) 3:2

(B) 2:3 

(C) 4:9

(D) 9:4

2 Answers

+1 vote
by (44.8k points)
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Best answer

सही विकल्प है: (B) 2 : 3

Given:

The circumference of two circles are in the ratio 2 : 3.

Let the radius of the circles be \(r_1\) and \(r_2.\)

\(\frac{c_1}{c_2} =\frac{2}{3} \)

\(\frac{2 \pi r_1}{2 \pi r_2} =\frac{2}{3} \)

\(\frac{r_1}{r_2} =\frac{2}{3} \)    

\(r_1: r_2 =2: 3\)  

+1 vote
by (43.6k points)

सही विकल्प है: (B) 2 : 3 

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