Fred bought a new graduated cylinder for his chemistry class. It holds 136.71 mL of liquid. If the cylinder has a radius of 2.1 cm, then how tall is the cylinder?

(1 milliliter is equal to 1 cubic centimeter)
A.
65 cm
B.
33 cm
C.
4,238 cm
D.
31 cm

Answers

For this case, the first thing we need to know is that the volume of a clinker is given by:  V = pi * r ^ 2 * h  Where,  r: cylinder radius  h: cylinder height  Substituting values we have:  136.71 = 3.14 * (2.1) ^ 2 * h  Clearing h we have:  h = (136.71) / (3.14 * (2.1) ^ 2)  h = 9.87 cm  Answer:  the cylinder is 9.87 cm tall  Note: answer is not among the options. Please review the problem data, or the options again.


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