Answer:
Question 1: 379.94 ft²
Question 2: 254.34 ft²
Step-by-step explanation:
The formula for the area of a circle is:
A = πr² where r = radius of the circle
For the first question the radius = 11 feet, so plug this into the equation:
A = π(11)² = 3.14(121) = 379.94 ft²
For the second question, the diameter is 18 feet, which is two times the radius. So, to find the radius, divide the diameter by 2:
18/2 = 9
radius = 9 feet
A = π(9)² = 3.14(81) = 254.34 ft²
