If you can show your work that would be great!

The given figure is formed by combining a cone and a hemisphere, where

radius (r) = 12 cm

slant height (l) = 20 cm

by pythagoras theorem,

=》

=》

=》

=》

=》

now, we know

Volume of given figure = volume of cone + volume of hemisphere

volume of cone :

=》

=》

=》

=》

=》

now, volume of hemisphere :

=》

=》

=》

=》

So, volume of figure =

=》

hence, the answer is A. 1920 \pi

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.