CHAPTER 10.2 MEASURING ANGLES AND ARCS. A central angle of a circle is an angle with a vertex in the center of the circle. The sides of a central angle.

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Presentation transcript:

CHAPTER 10.2 MEASURING ANGLES AND ARCS

A central angle of a circle is an angle with a vertex in the center of the circle. The sides of a central angle are radii of the circle. CENTRAL ANGLE

CONCEPT

Find Measures of Central Angles Find the value of x.

A.9 B.10 C.11 D.65 Find the value of x.

Classify Arcs and Find Arc Measures Answer:

Classify Arcs and Find Arc Measures

Answer:

A. B. C. D.

A. B. C. D.

A. B. C. D.

CONCEPT

Find Arc Measures in Circle Graphs Answer:

Find Arc Measures in Circle Graphs

A B C D.165.9

A B C D.201.4

CONCEPT

Use Arc Addition to Find Measures of Arcs

A.180 B.90 C.52 D.38

A.52 B.90 C.142 D.180

CONCEPT

Find Arc Length Arc Length Equation Answer:

Find Arc Length Answer:

Find Arc Length Answer:

A.3.56 cm B.3.77 cm C.3.98 cm D.4.21 cm

A cm B cm C cm D cm

A cm B cm C cm D cm