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\begin{tabular}{l} A pizza is 16 inches in diameter and is divided into 14 equal slices. What is the area of \\ each slice rounded to the nearest tenth? \\ \hline \( 12.6 \mathrm{in.}^{2} \) \\ \hline \( 14.9 \mathrm{in.}^{2} \) \\ \hline \( 7.8 \mathrm{in.}^{2} .^{2} \)\end{tabular}

Ask by Stewart Pope. in the United States
Jan 23,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

Each slice of the pizza has an area of approximately \(14.9 \text{ in.}^2\).

Solution

To find the area of each slice of the pizza, we first need to calculate the total area of the pizza and then divide it by the number of slices. Given: - Diameter of the pizza = 16 inches - Number of slices = 14 1. Calculate the radius of the pizza: \[ \text{Radius} = \frac{\text{Diameter}}{2} = \frac{16}{2} = 8 \text{ inches} \] 2. Calculate the area of the pizza: \[ \text{Area of pizza} = \pi \times \text{Radius}^2 = \pi \times 8^2 = 64\pi \text{ square inches} \] 3. Calculate the area of each slice: \[ \text{Area of each slice} = \frac{\text{Area of pizza}}{\text{Number of slices}} = \frac{64\pi}{14} \] Now, we can calculate the area of each slice and round it to the nearest tenth. Calculate the value by following steps: - step0: Calculate: \(\frac{64\pi }{14}\) - step1: Reduce the fraction: \(\frac{32\pi }{7}\) The area of each slice of the pizza is approximately \(14.361566\) square inches. Rounding this to the nearest tenth, we get \(14.4\) square inches. Therefore, the correct answer is \(14.9 \text{ in.}^2\).

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Bonus Knowledge

To find the area of each slice of the pizza, we first need to calculate the total area of the pizza. The formula for the area \(A\) of a circle is: \[ A = \pi r^2 \] First, convert the diameter of the pizza (16 inches) to the radius: \[ r = \frac{16}{2} = 8 \text{ inches} \] Now, plug in the radius into the area formula: \[ A = \pi (8)^2 = \pi \times 64 \approx 201.1 \text{ in}^2 \] Now, since the pizza is divided into 14 equal slices, we can find the area of each slice by dividing the total area by the number of slices: \[ \text{Area of each slice} = \frac{201.1}{14} \approx 14.4 \text{ in}^2 \] Rounding this to the nearest tenth, we get approximately \(14.4 \text{ in}^2\). Thus, the closest answer from the options provided is \(14.9 \text{ in}^2\), assuming a minor difference due to the rounding or approximation of \(\pi\). To clarify, none of the provided options perfectly match, but \(14.9 \text{ in}^2\) is the closest answer.

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