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## Answers

The Brainliest Answer!

Volume of pipe(hollow cylinder) = πR²h - πr²h

Where R is outer circle and r is inner circle.

Where R is outer circle and r is inner circle.

**volume=πR²h - πr²h**

**=πh(R² - r²)**

R is the radius of outer circle

r is the radius of inner circle

R is the radius of outer circle

r is the radius of inner circle