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Circles and polygons

📖 Learn🎬 Guided Practice✏️ Practice
Concept 1 of 3 · no score 🙂

Chord or tangent?

A chord meets the circle twice · a tangent only onceradiustangenttouches at ONE pointchordedge to edge — TWO pointsradiuscentre to edge · diameter = 2 × radiuscircumference = all the way round
A chord through the centre is the diameter — the longest chord.
  1. 1A CHORD starts and finishes on the circumference — it meets the circle TWICE.