Engineering Board Exam Reviewer · Circles: Arcs and Angles · medium

Find the area of a sector of a circle with radius 10 cm and a central angle of 60°.

  1. 52.36 cm2
  2. 31.42 cm2
  3. 104.72 cm2
  4. 26.18 cm2

Answer

A. 52.36 cm2

Solution

Area = 12r2 = 12(100)≤ft(π/3 )=50π/3 52.36 cm2.

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