Circle and circumference

Dayana Guantiva, 23/2/2023

You may have come across many objects in daily life, which are round in shape, such as the wheels of a vehicle, bangles, dials of many clocks, coins of denominations of $50, key rings, buttons of shirts, etc. In a clock, you might have observed that the second’s hand goes around the dial of the watch rapidly and its tip moves in a round path. This path traced by the tip of the second’s hand is called a circle. In this book, you will study circles, other related terms, and some properties of a circle.


  • 1. Elements of a Circle
  • 2. Central Angles and Inscribed Angles
  • 3. Inscribed Angle Theorem
  • 4. Angles in a semicircle
  • 5. Tangent of a circle

1.

Elements of a Circle

– Norm Prokup

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