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9-8. Parts of Circles. Course 1. Warm Up. Problem of the Day. Lesson Presentation. 9-8. Parts of Circles. Course 1. TEKS 6.6.C: Geometry and spatial reasoning: describe the relationship between radius, diameter, and circumference of a circle. Learn to identify the parts of a circle.
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9-8 Parts of Circles Course 1 Warm Up Problem of the Day Lesson Presentation
9-8 Parts of Circles Course 1 TEKS 6.6.C: Geometry and spatial reasoning: describe the relationship between radius, diameter, and circumference of a circle. Learn to identify the parts of a circle.
9-8 Parts of Circles Course 1 Insert Lesson Title Here Vocabulary circle center chord radius (radii) diameter
9-8 Parts of Circles Center Course 1 A circle is the set of all points in a plane that are the same distance from a given point, called the center.
9-8 Parts of Circles Radius Center Course 1 A line segment with one endpoint at the center of the circle and the other endpoint on the circle is a radius (plural: radii).
9-8 Parts of Circles Radius Center Diameter Course 1 A diameteris a line segment that passes through the center of the circle and has both endpoints on the circle. The length of the diameter is twice the length of the radius.
9-8 Parts of Circles Radius Center Diameter Course 1 A chordis a line segment has both endpoints on the circle. Chord
9-8 Parts of Circles The circle is circle Z. LM is a diameter. ZL, ZM, and ZN are radii. LN is a chord. Course 1 Additional Example 1: Naming Parts of a Circle Name the circle, a diameter, and three radii. L Z M N
9-8 Parts of Circles D G I H The circle is circle D. IG is a diameter and also a chord. DI, DG, and DH are radii. Course 1 Check It Out: Example 1 Name the circle, a diameter, a chord, and three radii.