Question

Please help me please please

Answer 1

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 $m^{2}$