The problem is:
A water storage tank has the shape of a cylinder with diameter 22 ft. It is mounted so that the circular cross-sections are vertical. If the depth of the water is 12 ft, what percentage of the total capacity is being used?
I'm having a bit of trouble figuring this out...please help!
You can calculate angle A on the attachment from
Then calculate the volume within the sector of angle
Then calculate the area of the triangle with angle
Double this, add the result to the sector area and divide by
to find the ratio, then multiply by 100 for the percentage.
You could also calculate the area of the upper sector.