Answer:
3x-x+2=4
Explanation:
A straw that is 16 centimeters long fits inside a glass. The height of the glass is 14 centimeters. Find the radius of the glass.
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If the radius is more than 16 cms, it obviously fits.
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Not a well stated problem.
If you want the minimum radius, it's a right triangle problem, but only if the straw is a line.
If a diameter of the straw is given, it's a difficult but realistic problem.
3x-x+2=4