Q13
Three circles of diameter 10 cm each are bound together by a rubber band as shown in the figure. The length of the rubber band (in cm) if it is stretched is
Three circles of diameter 10 cm each are bound together by a rubber band as shown in the figure.
The length of the rubber band (in cm) if it is stretched is
The length of the rubber band (in cm) if it is stretched is
A.
30
B.
30 + 10π
AnswerC.
10π
D.
60 + 20π
Answer: Option B
Solution
Answer: Option B
Solution:
Length of rubber band= 3d + 2πr
= 30 + 10π