A pillar candle is shaped like a cylinder with a radius of 1.5 inches. The candle holds 123 cubic inches of wax. How tall is the candle? Use 3.14 for pi. Round your answer to the nearest hundredth.

Question

Mathematics

Paloma Dodson

19 June, 21:00

A pillar candle is shaped like a cylinder with a radius of 1.5 inches. The candle holds 123 cubic inches of wax. How tall is the candle? Use 3.14 for pi. Round your answer to the nearest hundredth.

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Answers (2)

Know the Answer?

Maci · Answer 1

Volume of candle = 3.24 * r^2 * h where r = radius and h = height

so plugging in the given values:-

123 = 3.14 * 1.5^2 * h

h = 123 / (3.14 * 1.5^2)

= 17.41 inches to nearest hundredth

Chelsea Rubio · Answer 2

V=hpir^2

pi=3.14

h=h

v=123

r=1.5

123=h3.14*1.5^2

123=h3.14*2.25pi

123=h7.065pi

divide both sides by 7.065

17.409=h

round to hundreth

17.41 inches