V=hpir^2
h=20
r=12
v=20pi12^2
v=20pi144
v=2880pi
2nd one is answer
From the left, first 8 is in the ten-thousands place, next is in the teens place
-- On the width:
3 yards = 9 feet
12 inches = another 1 foot
Total width = 10 feet
-- On the length:
8 yards = 24 feet
Ratio of width to length = (10 feet) / (24 feet)
= 5 / 12 .
The volume of the original prism is given by:
V1 = (10) * (2) * (h)
rewriting:
V1 = 20h
Where,
h: height
The volume of the second prism is given by:
V2 = (5) * (w) * (h)
We know that the height is the same.
As the volume is the same then:
(5) * (w) * (h) = 20h
Clearing w we have:
w = (20/5) = 4 cm
Answer:
The width, in centimeters, of the new prism is:
w = 4cm
Any decimal lower that .5 is rounded down, and anything .5 or higher is rounded up, so the answer would be 38.
