Area of Circle
Circumference of Circle
Area Composite Figures
100
Find the area of a circle with radius of 2 ft, in terms of pi.
4 \pi \ \text(ft)^2
100
The diameter of a circle is 2 inches. What is the circle's circumference?
6.28 in
100
Circle X has a radius of π. Circle Y has a circumference of 8π . Circle Z has an area of 9π . List the circles in order from smallest to largest radius.
Z, X, Y
200
Estimate the area of a circle with radius of 6 inches to the nearest hundredths place.
113.04 in2
200
The diameter of a circle is 4 millimeters. What is the circle's circumference?
12.56mm
200
The ratio of the circumferences of two circles is 3:5. What is the ratio of their areas?
9:25
300
Find the area of a circle with diameter 17 inches to the nearest hundredths place.
226.86 in2
300
The circumference of a circle is 31.4 kilometers. What is the circle's diameter?
10 km
300
My goat Cassidy is outside on a 20-foot long leash that is connected to a corner of my house. What is the area of the region in which Cassidy can roam?
300\pi \ ft^2
400
Find the area of a circle with circumference 51 inches
207.06 in2
400
The circumference of a circle is 125.6 yards. What is the circle's radius?
20 yards
400
Two quarter-circles are drawn inside a rectangle as shown. The two quarter-circles meet at a point on a side of the rectangle. If the radius of each quarter-circle is 6 inches, then what is the area of the shaded region?
72-18\pi \ \text{in}^2
500
Sam built a circular fenced-in section for some of his animals. The section has a circumference of 31.4 meters. What is the approximate area, in square meters?
78.5 m2
500
The circumference of a circle is 125.6 centimeters. What is the circle's diameter?
40cm
500
20\pi \ cm^2