eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 8.2 Area and Circumference of Circles

For Students 9th - 10th Standards
A deep dive into the area and circumference of circles.
Unknown Type
Khan Academy

Khan Academy: Practice: Area of a Circle

For Students 7th - 8th Standards
A practice quiz on calculating the area of a circle. Includes hints.
Unit Plan
Cuemath

Cuemath: Segment of a Circle

For Students 9th - 10th
This lesson expands your knowledge about circles by learning about the segment of a circle, which will include its mathematical definition, area of the segment, types of segments in a circle, theorems based on a segment of a circle, and...
eBook
Mathigon

Mathigon: Geometry: Circle and Pi: Introduction

For Students 9th - 10th Standards
This lesson focuses on the characteristics of a circle including similarity, radius, circumference, and Pi. It provides formulas to determine the area of a circle, calculating Pi, and learning exercises throughout.