Answer:
4322.64 ft^2
Step-by-step explanation:
Diameter: [tex]\frac{radius}{2}[/tex]
Area of circle: [tex]\pi r^2[/tex]- r = radius
Area of rectangle: [tex]l * w[/tex]- l = length, w = width
The area of the family's backyard is 110 × 50 = 5500 feet. Now, let's find the area of the circular swimming pool.
- Radius: 36/2 = 18
- [tex]3.14*18^2[/tex]
- [tex]3.14 * 324[/tex]
- [tex]1017.36[/tex]
Next, we find the area of the concrete walkway.
- [tex]40 * 4[/tex]
- [tex]160[/tex]
After that, we add the area of the circular pool and walkway.
- [tex]1017.36 + 160[/tex]
- [tex]1177.36[/tex]
Lastly, subtract 1177.36 from 5500.
- [tex]5500 - 1177.36[/tex]
- [tex]4322.64[/tex]
Therefore, the answer is 4322.64.
Have a lovely rest of your day/night, and good luck with your assignments! ♡