Chapter Overview
This chapter builds on your understanding of circles by teaching you how to find areas and perimeters of circular figures like sectors and segments. It combines the concepts of geometry and mensuration and helps in solving practical problems involving circular shapes.
Important Keywords
- Circle: A closed shape where all points are equidistant from the center.
- Radius: A line from the center to any point on the circle.
- Diameter: A chord that passes through the center and is twice the radius.
- Circumference: The distance around the circle. Formula: 2πr.
- Sector: A region bounded by two radii and the arc between them.
- Segment: A region bounded by a chord and the arc connecting the chord’s endpoints.
Detailed Notes
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