Math, asked by sunilmrathod2565, 2 months ago

Answer this with step by step

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Answered by pratham725645

0

Answer:

circumference of inner circle

radius = 12.5-8.5. = 4

circumference = 2πr

2×3.14×4= 25.12

now,

circumference of outer circle

radius = 12.5

circumference = 2πr

2×3.14×12.5= 78.5

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