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What do you call a line segment that connects the center of a circle to any point on the circle?
radius
Identify the part of the circle shown in the image.
diameter
Identify the part of the circle shown in the image.
center
What is the name of the longest straight line that passes through the center of a circle?
diameter
What is the total distance around a circle called?
circumference
If the diameter of a circle is 10 cm, what is its radius?
5 cm
Which part of the circle is always half of the diameter?
radius
Which part of a circle is always twice the radius?
diameter
If a circle has a radius of 8 cm, what is the diameter?
16 cm
If the circle has a diameter of 24 cm, what is the radius?
12 cm
