Engineering Board Exam Reviewer · Circles: Arcs and Angles · medium
Two secants drawn from an external point intercept arcs of 140° (far) and 40° (near) on a circle. Find the angle between the secants.
- 90°
- 100°
- 180°
- 50°
Answer
D. 50°
Solution
The angle outside is half the difference of the intercepted arcs: 140°-40°/2=50°.
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