Can somebody help with this?

A. 2.9π(9)^2

Step-by-step explanation:

Area of base =πr^2 = π(18/2)^2 = π(9)^2

Volume = 2.9 x π(9)^2 = 2.9π(9)^2

step-by-step explanation:

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.