A balloon has a circumference of 11 cm. Approximate the surface area of the balloon to the nearest tenth.

asked Jul 23, 2022 121k views

1 vote

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4 votes

Answer:

1520.5 cm²

Explanation:

Surface area of a sphere =

A = 4πr²

= 4 x π x (11)²

= 1520.530844

= 1520.5 cm²

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