Chord properties in circle geometry
Chord properties in circle geometry
In a circle, when a line passes through the center of the circle and is perpendicular to a chord, the line will bisect the chord. In other words, the perpendicular bisector of a chord always passes through the center of the circle.
Basic concepts:
- Angles in a circle
- Tangent properties
- Circles and circumference
Lessons
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3.
Below is a segment of a circle, and A is the center of the circle. The radius is 15 cm, BC is 7.5 cm, and DE is 24 cm.
Determine.
