Engineering Board Exam Reviewer · Angles and Angle Measurement · easy

Convert 225° to radians.

  1. 5π/4
  2. 3π/4
  3. 7π/4
  4. π/4

Answer

A. 5π/4

Solution

225×π/180=5π/4 rad.

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  6. The angle subtended by an arc is 15 arcminutes. If the radius of the circle is 60 cm, find the length of the arc.
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