Exercise 14.5
0.1.
The radius of two concentric circles are 9 cm and 12 em respectively. Find
the area of the circular path between the two circles
Answers
Answered by
5
Answer:
Given circumferences of are circles are 12cm and 72cm respectively.
formula of circumference of a circle is 2πr [Here r is thr radius of a curcle]
and π=3 [given]
circumference of first circle= 2πr =2X3Xr1=12
r1=2cm
circumference of second circle= 2πr =2X3Xr2=72
r2=12cm
Difference bw radii=r2−r1=12−2=10cm
So, option B is the answer.
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