caityi9619
20.11.2021 •
Mathematics
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.
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Ответ:
1083.45
Step-by-step 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
Ответ: