Worksheets — Set 1

Geometry · Honors · Circle theorems and arc measures

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. Central angle 90°. Arc measure? ___ 2. Inscribed angle intercepting arc 100°. Measure? ___ 3. Arc length: radius 8, central angle 90°. ___

_See printable PDF for diagram._

Written practice

1. Central angle 75°. Arc measure? ___ 2. Inscribed angle intercepting arc 90°. Measure? ___ 3. Arc length: radius 7, central angle 90°. ___ 4. Chord distance from center: radius 6, chord length 9. Distance? ___ 5. Tangent radius relationship: angle measure? ___ 6. Label a diagram with arc and angle measures. 7. Central angle 120°. Arc measure? ___ 8. Inscribed angle intercepting arc 120°. Measure? ___

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More written practice

1. Arc length: radius 10, central angle 90°. ___ 2. Chord distance from center: radius 9, chord length 12. Distance? ___ 3. Central angle 165°. Arc measure? ___ 4. Inscribed angle intercepting arc 150°. Measure? ___ 5. Arc length: radius 13, central angle 90°. ___ 6. Chord distance from center: radius 12, chord length 15. Distance? ___

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Patterns and rules

1. Central angle 330°. Arc measure? ___ 2. Inscribed angle intercepting arc 260°. Measure? ___ 3. Arc length: radius 24, central angle 90°. ___

_See printable PDF for diagram._

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Parent tip: Mark central and inscribed angles on diagrams