find the height

A paper cone cup beside a water cooler has a diameter of 6 centimeters and a slant length of 9 centimeters. What is the approximate height,h, of the cup?
A 3 radical 5 centimeters
B 6 radical 2 centimeters
C 3 radical 10 centimeters
D 7 radical 2 centimeters

asked by Anonymous
  1. make a side view sketch and you will see that
    h^2 + 3^2 = 9^2
    solve for h

    btw, your choices are not approximate heights, they are exact heights

    posted by Reiny
  2. um they aren"t exact bc of the radicals thank you very much -_-

    posted by Anonymous

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