Formula
radius/diameter
Circumference
Area
A little of Everything
100
The formula for the circumference of a circle, given the diameter.
C = π d
100
If the diameter is 14 inches, this is the radius.
7 inches
100
Find the circumference, if the radius is 3 ft. Round to the nearest hundredth.
18.85 ft
100
Find the area, if the radius is 3 m.
28.27 sq m
100
Round the following to the nearest hundredth. 351.3274
351.33
200
The formula for the circumference of a circle, given the radius.
C = 2 π r
200
If the radius is 5 m, this is the diameter.
10 m
200
Find the circumference given the diameter is 20 m.
62.83 m
200
Find the area, if the radius is 9 yards.
254.47 sq yards
200
Combine like terms to simplify 3x - 4 + 1 - 5x =
-2x - 3
300
The formula for the area of a circle.
A = pi r squared
300
Given the diameter is 25 cm, what is the radius?
12.5 cm
300
Find the circumference, given the radius is 2 miles.
12.57 miles
300
A round loaf of bread has a radius of 4 inches, find the area.
50.27 sq inches
300
3x - 4 = -19 Solve for x
x = -5
400
What are the two formulas to find the circumference?
C=πd and C=2πr
400
If the radius is 13.6 ft, find the diameter.
17.2 ft
400
Find the radius, if the diameter is 13.5 in.
42.41 in
400
If the diameter is 16 in, find the area.
201.06 sq in
400
The angle measure of a triangle
180 degrees
500
What is the formula that proves pi as being equal to 3.14....
circumference/diameter (the ratio is approx. 3.14 : 1)
500
Given the diameter is 499.5 mm, find the radius.
249.75 mm
500
Given the circumference is 6.30 feet, find the diameter.
2 feet
500
If the diameter is 25 cm, find the area.
490.87 sq cm
500
What is the area of a triangle that has a base of 3 feet, height of 4 feet, and a hypotenuse side that measure 5 feet?
6 square feet
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