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If the sum of the circumferences of two circles with radii Rj and R2 is equal to the circumference of a circle of radius R, then [NCERT Exemplar Problems] (a) R1 + R2 = R (b) R1 + R2 > R (C) R1 + R2 (d) nothing definite can be said about the relation among Rp1, R2 and R.

If the sum of the circumferences of two circles with radii Rj and R2 is equal to the circumference of a circle of radius R, then [NCERT Exemplar Problems]
(a) R1 + R2 = R
(b) R1 + R2 > R
(C) R1 + R2 < R
(d) nothing definite can be said about the relation among Rp1, R2 and R.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
one year ago
Answer: a Explaination: (a) 2πR1 + 2πR2 = 2πR ⇒ R1 + R2 = R.

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