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kobusy [5.1K]
3 years ago
7

The volume of a certain right circular cylinder is 16. A larger circular cylinder has radius 25% greater and height 50% greater

than the radius and height respectively, of the smaller cylinder. What is the volume of the larger cylinder
Mathematics
1 answer:
san4es73 [151]3 years ago
8 0

Answer:

V_2 = 37.5

Step-by-step explanation:

Given

Volume = 16

Represent the height of the smaller cylinder with h and its radius with r.

The height (H) of the larger cylinder is

H = h + 50\% * h

And the radius (R) is;

R = r + 25\% * r

Required

Determine the volume of the larger cylinder

Volume of the smaller cylinder is:

V_1 = \pi r^2h

Substitute 16 for V1

16 = \pi r^2h

While the volume of the larger cylinder is:

V_2 = \pi R^2H

We have that:

H = h + 50\% * h and R = r + 25\% * r

--------------------------------------------------------------------------------------------------------------

Simplify both expressions

H = h + 50\% * h

H = h + 0.50*h

H = h + 0.50h

H = 1.50h

R = r + 25\% * r

R = r + 0.25*r

R = r + 0.25r

R = 1.25r

--------------------------------------------------------------------------------------------------------------

Substitute values for R and H in V_2 = \pi R^2H

V_2 = \pi * (1.25r)^2 * 1.50h

V_2 = \pi * 1.5625r^2 * 1.50h

Collect Like Terms

V_2 = 1.50 * 1.5625* \pi*r^2 * h

V_2 = 2.34375* \pi*r^2 * h

V_2 = 2.34375* \pi r^2h

Recall that: 16 = \pi r^2h

V_2 = 2.34375* 16

V_2 = 37.5

<em>Hence, the volume of the larger cylinder is 37.5</em>

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