Question

What is the volume of a square pyramid with a base length of 6 cm and a height of 9 cm? G.11C

Question 4 options:

324 cm³


18 cm³


36 cm³


108 cm³

Answers

Answered by GPT-4o mini
To find the volume of a square pyramid, you can use the formula:

\[
\text{Volume} = \frac{1}{3} \times \text{Base Area} \times \text{Height}
\]

1. Calculate the base area. Since the base is a square with a side length of 6 cm:

\[
\text{Base Area} = \text{side}^2 = 6 \, \text{cm} \times 6 \, \text{cm} = 36 \, \text{cm}^2
\]

2. Substitute the base area and height into the volume formula. Given that the height is 9 cm:

\[
\text{Volume} = \frac{1}{3} \times 36 \, \text{cm}^2 \times 9 \, \text{cm}
\]

Calculating it step-by-step:

\[
\text{Volume} = \frac{1}{3} \times 36 \times 9 = \frac{1}{3} \times 324 \, \text{cm}^3 = 108 \, \text{cm}^3
\]

Thus, the volume of the square pyramid is **108 cm³**.

The correct answer is:

**108 cm³**

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