Explanation:
In order to find the area, we need to find the radius. In order to find the radius, we need to divide 10 by 2 because the radius is half of the diameter.
10 ÷ 2 = 5
![A=r^2\pi](https://img.qammunity.org/2021/formulas/mathematics/middle-school/4w0o1b2hagr8ygx09g14bvzhudlkiy1uda.png)
![A=(5)^2\pi](https://img.qammunity.org/2021/formulas/mathematics/college/riqeyt2x22y72dhuhytyx600mkj4wsg9p0.png)
![A=25\pi](https://img.qammunity.org/2021/formulas/mathematics/college/rwwcuits39vec36ucaksqko0zijvw53us0.png)
![A=78.5](https://img.qammunity.org/2021/formulas/mathematics/high-school/t14aszhf0boywpmby2gkipsh2nium0d156.png)
So, the area of the circle (given that the diameter is 10) is 78.50 in².