Engineering Board Exam Reviewer · Circles: Arcs and Angles · medium
Find the length of a chord that subtends a central angle of 90° in a circle of radius 8 cm.
- 11.31 cm
- 8.00 cm
- 16.00 cm
- 5.66 cm
Answer
A. 11.31 cm
Solution
Chord =2r ≤ft( /2 )=2(8) 45°=16≤ft( 2/2 )=8 2 11.31 cm.
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