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Chord Theorems at a Glance

Mathematics · Class 10

Keep the names and the one-line conclusion. Proofs live in the textbook; the exam often wants the statement plus a Pythagoras number.

bisect <-> perp
equal <-> equidistant
d = 5 cm
converse is separate
CHORD THEOREMS AT A GLANCE: Keep the names and the one-line conclusion. Proofs live in the textbook; the exam often wants the st
Unique circle: If 3 non-collinear points, then exactly one circumcircle.
Bisector from O: If Line from O bisects chord, then it is perpendicular to the chord.
WHAT — CHORD THEOREMS AT A GLANCE: Keep the names and the one-line conclusion. Proofs live in the textbook; the exam often wants the st

Right triangle — Chord Theorems at a Glance — original sketch for this lesson (not copied from a textbook).