To find the area of the shaded region, we first find the area of the larger circle and then subtract the area of the smaller circle.
Area of larger circle = πr^2
Area of larger circle = 3.14 * 9^2
Area of larger circle = 3.14 * 81
Area of larger circle = 254.34
Area of smaller circle = πr^2
Area of smaller circle = 3.14 * 5^2
Area of smaller circle = 3.14 * 25
Area of smaller circle = 78.5
Now we subtract the area of the smaller circle from the area of the larger circle to find the area of the shaded region.
Area of shaded region = 254.34 - 78.5
Area of shaded region = 175.84
Therefore, the area of the shaded region is approximately 175.84 units squared.
n the diagram below, two concentric circles have radii of 9 and 5 units, respectively. What is the area of the shaded region? Round your answer to the nearest hundredth.
*Use 3.14 for pi.
1 answer
1 answer