Two cylindrical pipes both have radius 7 cm. One is 10 cm long and the other is 15 cm long. By how much does the curved surface area of the longer pipe exceed the shorter one's? (Take π = 22/7.)

Question

Accepted Answer

220 sq cm. Each extra cm of length adds 2πr = 44 sq cm. Extra length 5 cm gives 44 × 5 = 220 sq cm.

Two cylindrical pipes both have radius 7 cm. One is 10 cm long and the other is 15 cm long. By how much does the curved surface area of the longer pipe exceed the shorter one's? (Take π = $\frac{22}{7} .$ )

Step-by-Step Solution

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More Class 8 Surface Area of a Cylinder practice

Two cylindrical pipes both have radius 7 cm. One is 10 cm long and the other is 15 cm long. By how much does the curved surface area of the longer pipe exceed the shorter one's? (Take π = 722​.)

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Surface Area of a Cylinder practice

Two cylindrical pipes both have radius 7 cm. One is 10 cm long and the other is 15 cm long. By how much does the curved surface area of the longer pipe exceed the shorter one's? (Take π = $\frac{22}{7} .$ )