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The volume of a cube is 125 cm³. What is the length of one side of the cube?A. 5 cmB. 10 cmC. 15 cmD. 25 cm

Question

The volume of a cube is 125 cm³. What is the length of one side of the cube?

A. 5 cm
B. 10 cm
C. 15 cm
D. 25 cm

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Solution

1. Break Down the Problem

To find the length of one side of the cube, we need to use the formula for the volume of a cube, which is: V=s3 V = s^3 where V V is the volume and s s is the length of one side.

2. Relevant Concepts

Given the volume V=125cm3 V = 125 \, \text{cm}^3 , we need to solve for s s : s=V1/3 s = V^{1/3}

3. Analysis and Detail

Now, we can calculate the length of one side: s=1251/3 s = 125^{1/3} To find 1251/3 125^{1/3} , we can recognize that 125=53 125 = 5^3 : s=(53)1/3=5 s = (5^3)^{1/3} = 5

4. Verify and Summarize

We have calculated s s to be 5 5 cm. To verify: V=s3=53=125cm3 V = s^3 = 5^3 = 125 \, \text{cm}^3 This matches the given volume.

Final Answer

The length of one side of the cube is 5 cm (Option A).

This problem has been solved

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