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Chord Theorem 3 Self Explore Lesson

Chord Theorem 3

Chord Theorem 3

The line is the shortest distance between the centre A and the line .

Chord Theorem 3

What do you notice about angle ?

Chord Theorem 3

What do you notice about and ?

Chord Theorem 3

What do you notice about lines and ?

DEFINITION

This additional line is called a perpendicular bisector, as it meets the chord at 90 degrees, and cuts both the centre angle and the chord in half.