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Rasek [7]
3 years ago
14

The ratio if the base edges of two similar pyramids is 3:4 the volume of the larger pyramid is 320 in^3. What is the volume of t

he smaller pyramid???
Mathematics
2 answers:
Minchanka [31]3 years ago
5 0

Answer:

135 cubic inches.

Step-by-step explanation:

Given : The ratio of the base edges of two similar pyramids is 3:4

           The volume of the larger pyramid is 320 cubic inches.

To Find: What is the volume of the smaller pyramid?

Solution:

The ratio of the base edges of two similar pyramids is 3:4

The volume of the larger pyramid is 320 cubic inches.

The ratio of the volume of pyramids is equal to the ratio of the cubes of the sides of pyramids .

So, \frac{3^3}{4^3} =\frac{\text{Volume of smaller pyramid}}{320}

\frac{27}{64} =\frac{\text{Volume of smaller pyramid}}{320}

\frac{27}{64} \times 320 =\text{Volume of smaller pyramid}

135 =\text{Volume of smaller pyramid}

Thus the volume of smaller pyramid is 135 cubic inches.

Sedaia [141]3 years ago
4 0

ratio of voljumes = 3^3 : 4^3 or 27:64 small/large = 27 / 64 vol of smaller = 27 * 320 / 64 =135

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