Chord of a Circle
How to solve the chord of a circle problems: definition, property, example, and its solution.
A chord is a line segment
whose endpoints are on the circle.
If a line segment starts from the radius
(or passes the radius)
and is perpendicular to the chord,
then the line segment bisects the chord.
OA is the radius.
So OA = 5.
The hypotenuse is 5 and the leg is 3.
So it's a (3, 4, 5) right triangle.
So AP = 4.
OP ⊥ AB (⊥: is perpendicular to)
So OP bisects AB.
So AP = PB = 4.
So AB = 4 + 4 = 8.