Question

Enrique bought a packing tube to ship a poster to his cousin. If the packing tube had a volume of 1761 cubic centimeters and

an altitude of 11 centimeters, what was the radius of the packing tube?

a.) 16 cm
b.) 12 cm
c.) 7 cm
d.) 4cm

Answer 1

r = 7 cm

Explanation:

Given that,

Volume of the packing tube, V = 1761 cm²

The altitude of the tube, h = 11 cm

We need to find the radius of the packing tube. The volume of the the cylindrical shaped object is given by :

`V=\pi r^2 h\\\\r^2=(V)/(\pi h)\\\\r^2=(1761)/(\pi * 11)\\\\r=7.13\ cm`

or

r = 7 cm

So, the radius of the packing tube is 7 cm.