CPM Homework Help : APCALC Problem 1-120

A flag in the shape of a quarter-circle is shown at right.

Horizontal segment, with shaded top right quarter of a circle, above the segment, with its radius, labeled 5, on the right third of the segment.

Imagine rotating the flag about its pole and describe the resulting three-dimensional figure. Draw a picture of this figure on your paper.
Hint (a):
What three-dimensional figure does this shape remind you of?

Calculate the volume of the rotated flag.
Hint (b):
What is the formula for the volume of a sphere?
More Help (b):
How would you determine the volume of half of a sphere?

Use the eTool below to visualize the rotating flag.
Click the link at right for the full version of the eTool: Calc 1-120 HW eTool