The area of the border around the pool is determined as 145.97 ft².
<h3>
Area of the pool</h3>
Diameter of the circle = 20 ft
Radius of the circle = 10 ft
<h3>Area of circular portion:</h3>
Area = π(10²) = 314.16 ft²
<h3>Area of rectangular portion</h3>
A = 40 ft x 20 ft = 800 ft²
Pool area = 314.16 ft² + 800 ft² = 1,114.16 ft²
<h3>Overall area which include 1 foot border</h3>
Diameter of the circle = 20 ft + 1ft + 1 ft = 22 ft
Radius of the circle = 11 ft
<h3>Area of circular portion:</h3>
A = π(11²) = 380.13 ft²
<h3>Area of rectangular portion:</h3>
A = 22 ft x 40 ft = 880 ft²
Total area = 880 ft² + 380.13 ft² = 1,260.13 ft²
<h3>Area of the border</h3>
Area of border = Total area - pool area
Area of border = 1,260.13 ft² - 1,114.16 ft²
Area of border = 145.97 ft²
Thus, the area of the border around the pool is determined as 145.97 ft².
Learn more about area of circle here: brainly.com/question/12269818
#SPJ1
