Q. 24.6( 11 Votes )

If the sum of the circumferences of two circles with radii R1 and R2 is equal to the circumference of a circle of radius R, then
A. R1 + R2 = R

B. R1 + R2 > R

C. R1 + R2 < R

D. Nothing definite can be said about the relation among R1, R2 and R.

Answer :

We are given that


Circumference of circle with radius R = Circumference of first circle with radius R1 + Circumference of second circle with radius R2


2πR = 2πR1+ 2πR2


R = R1+ R2


option A is correct.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Area Related with Circles47 mins
Champ Quiz | Area Related with the Circle45 mins
Quiz | Imp. Qs. on Circles37 mins
Short Cut Trick to Find Area of Triangle43 mins
Surface Area and Volume49 mins
Surface Area and Volumes43 mins
Quiz | Surface Area and Volumes42 mins
Tricks to MemoriseFREE Class
Smart and Effective study is the Key of success45 mins
Various Tricks for How to Study Effectively32 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses