10.7 - Area of Sectors

10.7 - Area of Sectors

By Steve Dull

Objective

​To find area of sectors of circles

Vocabulary

​Sector

A sector is a section of a circle bounded by a central angle and its intercepted arc.

​

Think of a sector like a slice of pie! (some folks would say pizza, except we do squares around here).​

Area of a Sector Formula

Let's walk through one

Some text here about the topic of discussion

Your turn

Open Ended

If JK = 3mm, determine the area of the shaded region.

Should have about 6.59 sq. mm

Another one

Multiple Choice

Determine the area of the shaded region.

• $$0.28\ sq.\ ft.$$  

• $$9.21\ sq.\ ft.$$  

• $$267.17\ sq.\ ft.$$  

• $$3316.63\ sq.\ ft.$$  

Power up?

Open Ended

If HG =7 cm, find the total area of the shaded region.

Poll

How we feeling on finding area of sectors?

Independent Practice time