1. **State the problem:** We need to find the volume of a pentagonal prism with a height of 13 cm, each side of the pentagonal base measuring 13 cm, and the apothem (distance from the center to a side) of the pentagon is 8 cm.
2. **Formula for volume of a prism:**
$$V = B \times h$$
where $B$ is the area of the base and $h$ is the height of the prism.
3. **Calculate the area of the pentagonal base:**
The area of a regular pentagon is given by:
$$B = \frac{1}{2} \times P \times a$$
where $P$ is the perimeter and $a$ is the apothem.
4. **Calculate the perimeter $P$:**
Since each side is 13 cm and there are 5 sides,
$$P = 5 \times 13 = 65 \text{ cm}$$
5. **Calculate the base area $B$:**
$$B = \frac{1}{2} \times 65 \times 8 = \frac{1}{2} \times 520 = 260 \text{ cm}^2$$
6. **Calculate the volume $V$:**
Using the height $h = 13$ cm,
$$V = 260 \times 13 = 3380 \text{ cm}^3$$
7. **Conclusion:** The volume of the pentagonal prism is $3380$ cubic centimeters.
**Final answer:** C) 3380 cm³
Pentagonal Prism Volume
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