Circumference C = 2pr or pd. Circumference C = 2pr or pd.

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Presentation transcript:

Circumference C = 2pr or pd

Find the circumference in terms of pi and to the nearest tenth

Portion of the circumference Arc Length Portion of the circumference A P B

Your Turn: Find the length of AB. ( A 150o B 34 cm.

( Ex 2: Find the m LM. Notice that we are given the arc length and need to find the measure of the arc!! 16.76 in. L 8 in. M C

( Your Turn: Find the m AB. 18.84 in. B 9 in. A C

Ex 3: Find the circumference of circle C. 10.2 cm S 45o C

Your Turn: Find the radius of circle C. READ the directions carefully!!! 1.57 ft S 45o C

Your Turn: Find the circumference of circle C. A 200o C 41.87 cm B