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20 questions
The distance halfway across the circle is called the...
radius
diameter
circumference
area
Is the red line a radius or diameter of the circle?
Radius
Diameter
A Circle has a diameter of 18 meters. What is the circumference of the circle? (Best Choice)
9π or about 28.26 m
18π or about 56.52 m
81π or about 254.34m
324π or about 1017.36 m
Find the radius of a circle if the circumference is 37.7 cm
2cm
3cm
5cm
6cm
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