Difference between the perimeter of two concentric circles is/66 find the difference between /there radius
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Answered by
1
Answer:
Step-by-step explanation:
2×22/7R-2×22/7r=66
44/7(R-r)=66
R-r=66×7/44
R-r=10.5
Answered by
0
Answer:
10.5
Step-by-step explanation:
perimeter of a circle is 2πr
p1 -p2 = 2π (r1-r2)
66 = 2 π (r1-r2)
33/π = r1 - r2
r1 -r2 = 10.5
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