Today’s Objectives Module 19: Identify special right triangles Module 20: Area of regular polygons and circles and circle sectors.

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Presentation transcript:

Today’s Objectives Module 19: Identify special right triangles Module 20: Area of regular polygons and circles and circle sectors

 Right hand driving  Systems of shared intersections  One-way traffic circles  One-way streets  Traffic signs  Pavement marking  Regulations against jaywalking  Taxi stands  Off-street parking  Driver’s licenses  Vehicle registration  Traffic tickets

Goal: find the area of the circle. 45°

The perimeter is 20 cm. Find the area.

The perimeter is 24 cm. Find the area.

The perimeter is 20 cm. Find the area. (using triangles)

Find the area given the circumference is 22mm

Find the area given the circumference is 30mm

Goal: find the area of the circle. 45°

Goal: find the area of the circle. 20°

Today’s Objectives Module 19: Identify special right triangles needed for Mr. Field’s presentation on circles Module 20: Area of regular polygons and circles and circle sectors