Answer:
pyramid with triangular base
C= 615.44
c=3.14(r)^2
c=3.14(14)^2
(0,0) and (4,1)
Find the slope: m = (y2-y1)/(x2-x1) = (1-0)/(4-0) = 1/4
Input m, x1, and y1 into the Point-Slope equation:
y - y1 = m(x - x1)
y - 0 = 1/4 (x - 0)
y = 1/4 x
# of blankets at the beginning = b
11 = b - 9
11 + 9 = b
b = 20
