the question is in the picture shown.

C

Step-by-step explanation:

The volume (V) of a cone is calculated as

V = area of base × height

   = × πr² × height

Here diameter = 22, thus r = 11 and h = 22

V = × π × 11² × 22

   = × π × 121 × 22

   =

   ≈ 2787.64 → C

19.3

Step-by-step explanation:

The base of the top triangle is 24.158 (approximately) found from the bottom triangle using the sine rule

from that,

sin(53) = r/24.158

or, r = 24.158×sin(53)

or, r = 19.3 (rounded to the nearest tenth)