Engineering Board Exam Reviewer · Circles: Chords, Tangents and Secants · medium

A chord of length 8 is drawn in a circle of radius 5. Find the height of the circular segment (the sagitta) cut off by the chord.

  1. 3
  2. 1
  3. 2
  4. 4

Answer

C. 2

Solution

The chord is sqrt(25-16)=3 from the center, so the sagitta is 5-3=2.

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