Area is proportional to the square of the dimensions.
Divide the dimensions by 3, and you divide the area by 3-squared = 9.
Since the area of a circle is π

, and our radius is 9 we know the total area to be 254.469, and the ratio of sector area to total area is 169.56/254.469 = .6663. There are 360 degrees in a circle, so:

≈ 240°
240 degrees
Answer:
x = 4
Step-by-step explanation:
10 = -1/4 x + 11
10 - 11 = -1/4 x
-1 = - 1/4 x
x = 4
9 x 8 = 72
9 + 9 +9 + 9 + 9 +9 + 9 + 9 = 72