Essential Questions: Standards:

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Presentation transcript:

Essential Questions: Standards: How do you find the length of an arc of a circle How do you find the area of a sector of a circle Standards:

Circumference of a Circle: Distance around a circle = 2𝜋 𝑟𝑎𝑑𝑖𝑢𝑠 11.4 Circumference of a Circle: Distance around a circle Circumference = 𝜋 𝑑𝑖𝑎𝑚𝑒𝑡𝑒𝑟 = 2𝜋 𝑟𝑎𝑑𝑖𝑢𝑠 Find the indicated measure. Circumference of a circle with radius 9 centimeters Radius of a circle with circumference 26 meters

Arc Length

Practice Find the circumference of the red circle 27

Practice Find the indicated measure 1. length of arc AB. 2.

11.5 Area of a Circle:

Sector of a Circle:

Practice

Practice

Homework: Page 750: #15 – 23all Page 758: # 12, 13, 14