Answer:
Part A) The perimeter of the court is
![P=139.25\ ft](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xbx7yjpt66bdzh6td2oqkxcjjo7z17tuj5.png)
Part B)
![5\ cans](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1hjgor3lj3iyshmo1ryjgbpox4mnt5vhum.png)
Explanation:
Part A) we know that
The perimeter of the court is equal to the perimeter of the square plus the perimeter of semicircle
![P=4D+(\pi D )/(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/oaqx1mst5q75lla4a5eh1ruijs05356axj.png)
we have that
![D=25\ ft](https://img.qammunity.org/2020/formulas/mathematics/middle-school/l5btl7xfu4mromas8htkoqupomcq22ji9u.png)
substitute
![P=4(25)+((3.14*25))/(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ufd6c1v278r5bi8d1c1ptpblu85eldo029.png)
![P=139.25\ ft](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xbx7yjpt66bdzh6td2oqkxcjjo7z17tuj5.png)
Part B)
Find the area above the foul line (labelled II)
The area of a semicircle is equal to
![A=(\pi r^(2))/(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/zaz9pje348asjp90c6ctgcrv2b2meh8lfj.png)
we have
![r=25/2=12.5\ ft](https://img.qammunity.org/2020/formulas/mathematics/middle-school/irlv3wi0l39pt2sycz13dtcurhwe16srhp.png)
substitute
![A=((3.14)(12.5)^(2))/(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/wgohajfnygb4rnuirr73y3yvqf06tj6p6o.png)
![A=245.31\ ft^(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/sdq7q875snw80dxlnwr0gktaqbkulmu4d5.png)
Round to the nearest whole number
![A=245\ ft^(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t5m1td9e3ynqtwnldj4xo86u0wegjao8d5.png)
One can of paint covers 50 square feet of floor
so
Calculate how many cans of blue paint does the school need to purchase
![245/50=4.9\ cans](https://img.qammunity.org/2020/formulas/mathematics/middle-school/b6ekijglp1q2hc9ty6011dgaugsxg3vs7a.png)
Round up
![5\ cans](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1hjgor3lj3iyshmo1ryjgbpox4mnt5vhum.png)