Answer:
[tex]\boxed {\boxed {\sf a \approx 113.0 \ in^2}}[/tex]
Step-by-step explanation:
Assuming this pizza is a circle, we can use this formula for area:
[tex]a= \pi r^2[/tex]
1. Find Radius
We are given the diameter: 12 inches, but the formula uses radius.
The radius is half the diameter, or:
[tex]r=\frac{d}{2}[/tex]
[tex]r=\frac{12 \ in}{2}[/tex]
[tex]r= 6 \ in[/tex]
2. Calculate Area
Substitute the radius (6 inches) in for r. The question also asks us to use 3.14 for pi.
[tex]a= (3.14)(6 \ in)^2[/tex]
Solve the exponent.
[tex]a= (3.14)(36 \ in^2)[/tex]
Multiply.
[tex]a= 113.04 \ in^2[/tex]
3. Round
The question asks us to round to the nearest tenth.
The 4 in the hundredth place tells us to leave the 0 in the tenth place.
[tex]a \approx 113.0 \ in^2[/tex]
The area of the pizza is about 113.0 square inches.
