Name: ___________________________
Naming circles, diameters, and radii
Circles
A circle is named by the point in the center.
A radius is a line segment from the center of the circle to the edge.
A diameter is a line segment that passes through the center of a circle. It has two points
on the outside edge of the circle.
Write the name of each circle, radius, and diameter.
circle:
radius:
F
circle: ________
FO
diameter:
RG
radius: ________
diameter: _______
circle: ________
circle: ________
radius: ________
radius: ________
diameter: ________
diameter: _______
circle: ________
circle: ________
radius: ________
radius: ________
diameter: ________
diameter: _______
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Name: ___________________________
Naming circles, diameters, and radii
Circles - ANSWER KEY
A circle is named by the point in the center.
A radius is a line segment from the center of the circle to the edge.
A diameter is a line segment that passes through the center of a circle. It has two points
on the outside edge of the circle.
Write the name of each circle, radius, and diameter.
circle:
radius:
F
circle:
FO
diameter:
RG
R
radius: RB, RI, or RD
diameter: DI
circle: G
circle: L
radius: GA, GT, or GO
radius: LA, LB, or LM
diameter: TO
diameter: MB
circle: C
circle: D
radius: CT, CA, or CS
radius: DO, DG, or DS
diameter: SA
diameter: SG
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