Answer:
254.3 ft^2
Explanation:
First, let’s find the area of the entire circle. The area for a circle is 3.14 * radius^2
3.14*18^2 = 1017.36
Now, notice how the angle marked is 90 degrees, that means that this section of the circle is 90/360 (360 is the angle of a circle), or 1/4 of a whole circle. Now we can multiply 1/4 by the area to find 1/4 of the whole circle.
1017.36*1/4 = 254.34
Round to nearest tenth:
254.3 ft^2