Engineering Board Exam Reviewer · Circles: Chords, Tangents and Secants · easy
A chord 8 cm long is 3 cm from the center of a circle. Find the radius of the circle in cm.
- 7.42
- 5
- 4
- 11
Answer
B. 5
Solution
Half the chord is 4, so r=sqrt(42+32)=5 cm.
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