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Georgia [21]
3 years ago
14

Please help me please please

Mathematics
1 answer:
LenKa [72]3 years ago
6 0

Answer:

1276.19553 m^{2}

Step-by-step explanation:

First, find height using Pythagoras thorem.

a=\sqrt{20^2+12.5^2}

a=15.61

Then use the formula to find the surface area of a cone.

π•12.5•(12.5+\sqrt{15.61^2+12.5^2})=1276.19553 m^{2}

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