AMC / AIME · Circle Geometry · Easy
Circle Geometry: Find the radius of a circle with diameter math.
Chords, arcs, angles.
Try the problem
Find the radius of a circle with diameter .
Hint and answer
Concept to use
Central angles.
Hint
Use radius, diameter, arc, and angle relationships.
Answer
9
More Circle Geometry problems
Practice more with the free Circle Geometry worksheet generator, or browse the full problem library.