Circle Terms
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
100
The distance from the center of a circle to the outside, also half of the diameter.
What is radius
100
The Diameter of this circle is 25cm, what is the radius?
What is 12.5cm
100
The radius of this circle is given, what is the diameter?
10cm
100
The diameter of the circle is 19cm, calculate the circumference.
59.69 cm
100
Calculate the area
78.5 in squared
200
The longest part in a circle. From one edge to the other through the center.
What is the Diameter
200
The diameter of the circle is 420km, what is the radius?
210km
200
The radius of the circle is given, what is the diameter?
42cm
200
Calculate the circumference. (units = feet)
81.68 ft
200
The radius of the eye is 4mm, what is the area?
50.24mm squared
300
The distance around the circle.
What is circumference?
300
What is the radius of the ferris wheel?
60m
300
The radius of this circle is 15.7m,
what is the diameter?
31.4m
300
Calculate the circumference. (units = km)
47.12km
300
What is the area of the tabletop?
7.065 ft squared
400
The total amount of space inside of a circle
What is the area?
400
What is the diameter of this circle? Radius?
28m and 14m
400
The radius of the donut is given, what is the diameter?
19.5 mm
400
496.12 inches
400
The diameter of the pizza is 30 cm, what is the area?
706.5 cm squared
500
What is the number we use for Pi?
500
What is the radius of the orange?
6.8 mm
500
A rotary is going to be constructed at the site below. The radius is 11.25 yards, what is the diameter?
22.5 yards
500
The circumference of this playground is 194.68 feet, what is the diameter?
62 ft
500
The girls measure the diameter of the circle below to be 13.5ft, what is the area?
(round to the nearest whole number)
143 ft squared