<span>Given the polar coordinate (r,θ), write. x=rcos θ and. y=rsin θ.Evaluate cos θ and. sin θ.Multiply cos θ by. r. to find the x-coordinate of the rectangular form.<span>Multiply sin θ by. r. to find the y-coordinate of the rectangular form.</span></span>
Answer:
87.92 cubic inches
Step-by-step explanation:
to find the volume of a cylinder the formula is V = 
h
so first i squared 2
2x2= 4
i then multiplied 4 by the height (7)
4x7 = 28
then times 28 by pi (3.14)
28x 3.14 = 87.92
A=πr2=π·92≈254.469
your answer is 254.469
Lucy has 12.5 pounds, Lisa has 7 1/14 pounds