To find the circumference and area of a pizza with a diameter of 16 inches, we can use the following formulas:
Part 1: Circumference
The formula for circumference \( C \) is: \[ C = \pi \times d \] where \( d \) is the diameter. Given that \( d = 16 \) inches and using \( \pi \approx 3.14 \): \[ C = 3.14 \times 16 = 50.24 \text{ inches} \]
Circumference = 50.24 inches
Part 2: Area
The formula for area \( A \) is: \[ A = \pi \times r^2 \] where \( r \) is the radius. The radius \( r \) is half of the diameter: \[ r = \frac{d}{2} = \frac{16}{2} = 8 \text{ inches} \] Now substituting \( r \) into the area formula: \[ A = 3.14 \times (8^2) = 3.14 \times 64 = 200.96 \text{ square inches} \]
Area = 200.96 square inches
Summary
- Circumference = 50.24 inches
- Area = 200.96 square inches
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