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A solid metal sphere with diameter 10cm needs to be covered with a protective material which costs £0.29 per cm2. How much will it cost to cover the sphere with the material? Give your answer rounded to 2 DP.

User Stuartd
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1 Answer

2 votes

Answer:

1083.45

Explanation:

Diameter = 2r

Radius = 5cm because the diameter is 10.

4 pie r^2 is the surface area. = 314.2.

314.2/0.29 = 1083.45 Pounds

User SteveRawlinson
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