A cone has height $h$ and a base with radius $r$ . You want to change the cone so its volume is doubled. What is the new height
2 answers:
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Use the Pythagorean Theorem: 
You can do this because when you cut the rectangle in half with the diagonal, it forms a right triangle, making the diagonal the hypotenuse (c).
Diagonal: 62.48 inches
You can do this because when you cut the rectangle in half with the diagonal, it forms a right triangle, making the diagonal the hypotenuse (c).
Diagonal: 62.48 inches