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Goryan [66]
3 years ago
12

Calculate the inner area (cross sectional) of a pipe with an outer diameter of 300mm and a

Engineering
1 answer:
Sunny_sXe [5.5K]3 years ago
6 0

Answer:

46.3 cm²

216 m

Explanation:

The cross sectional area is the area of the outer circle minus the area of the inner circle.

A = πR² − πr²

R = 300/2 = 150 mm = 15 cm

r = 150 − 5 = 145 mm = 14.5 cm

A = π (15 cm)² − π (14.5 cm)²

A ≈ 46.3 cm²

Volume is area times length:

V = AL

10⁶ cm³ = (46.3 cm²) L

L ≈ 21,580 cm

L ≈ 216 m

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