HELP. How much water is needed to fill a water tank that is 15 feet long, 8 feet wide, and 4 feet deep. Options:

A: 60
B: 32
C: 480
D: 120

The Answer is option A :60

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb