A circular road runs round a circular ground if the difference between the circumference of the outer Circle and the inner circle is 66m.Find the width of the road.
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Answer:
10.5
Step-by-step explanation:
give difference between two circles is 66
circumfarence of a inner circle is = r
circumfarence of ourter circle is = r+x
2*pi *(r+x) = 2*pi*r +66
2*pi*r + 2*pi* x = 2*pi*r +66
2*pi*x = 66
pi* x = 33
x = 10.5
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