Question

(6) बाह्यस्पर्शी असलेल्या दोन वर्तुळांच्या त्रिज्या अनुक्रमे 5.5 सेमी व 4.2 सेमी
असतील तर त्यांच्या केंद्रातील अंतर किती सेमी. असेल ?
(A)
9.7
(B)
1.3
(C)
2.6
(
D)
4.6​

Answer 1

SOLUTION

TO CHOOSE THE CORRECT OPTION

The radii of the two outer circles are 5.5 cm and 4.2 cm respectively. If so,the distance between their centers will be

(A) 9.7

(B) 1.3

(C) 2.6

(D) 4.6

EVALUATION

Here it is given that the radii of the two outer circles are 5.5 cm and 4.2 cm respectively

Since the two circles touches each other outside

So the required distance between their centers

= Radius of the first circle + Radius of second circle

= 5.5 cm + 4.2 cm

= 9.7 cm

FINAL ANSWER

Hence the correct option is (A) 9.7

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