PPT
Sophia Learning

Sophia: Sector Area of a Circle: Lesson 4

For Students 9th - 10th Standards
This lesson will demonstrate how to find the area and radius of a circle when given the sector area and central angle measure. It is 4 of 8 in the series titled "Sector Area of a Circle."
Graphic
Curated OER

Visual Calculus: Area of a Circle

For Students 9th - 10th
Students will be able to use The Method of Exhaustion and find the area of a circle by illustrating graphically.
Graphic
Curated OER

Web Math: Find Out Things About Circles

For Students 3rd - 8th
WebMath offers a great site for students to practice finding the diameter, area and circumference of a circle.