Engineering Board Exam Reviewer · Polygons · hard
A regular octagon has a side of 6. Find the radius of its circumscribed circle.
- 7.84
- 3
- 6
- 8.49
Answer
A. 7.84
Solution
The side subtends a central angle of 45°: R=s/2 22.5°=6/2(0.3827) 7.84.
More Polygons questions
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