Lesson Worksheet: Central Angles in a Circle Mathematics

In this worksheet, we will practice identifying a central angle in a circle and finding its measure using its properties.


In the given figure, the circle has center 𝑀and radius 7 cm. Given that 𝐴𝐵=14.9cm, find 𝑀𝐵, rounded to the nearest tenth, and 𝑚𝐴𝑀𝐶.

  • A𝑀𝐵=14.9cm, 𝑚𝐴𝑀𝐶=151
  • B𝑀𝐵=16.5cm, 𝑚𝐴𝑀𝐶=119
  • C𝑀𝐵=13.2cm, 𝑚𝐴𝑀𝐶=119
  • D𝑀𝐵=16.5cm, 𝑚𝐴𝑀𝐶=151


How many 1 ∘ angles are in a circle?


How many 90 turns are needed to make a complete turn?


How many 45 angles does it take to make a full turn?


Jackson turns one-third of a full turn. How many degrees is this?


This circle is divided into 3 equal parts. What is the angle of each part?


What is the value of the central angle of a circular sector when a circular segment and a circular sector have the same area?


Find 𝑚𝐴𝑀𝐵.


𝐴, 𝐵, and 𝐷 are three points on a circle with radius 54 cm and center 𝑀. The point 𝐶 is the intersection of 𝑀𝐷 and 𝐴𝐵 and we have 𝑀𝐶𝐴𝐵 and 𝑀𝐶=42cm. Find the central angle of the major circular segment 𝐴𝐹𝐵 giving the answer to the nearest second.

  • A28415
  • B282654
  • C322730
  • D321327


In the figure, given that the circumference is 96 and 𝐴𝐵=12, find 𝜃.

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