Question

Plz telle both..... 20 and 21

Answer 1

Answer:

Step-by-step explanation:

(20)

in whole figure diameter of cylinde =diameter of hemisphere

r=3.5

find h of cylinder

h=13

r=3.5 find volume of cylinder

then find vol. of hemi.

r=3.5

multipy by 2

then add both of cylinder and hemi

216.41 pie