Circle_Grade_7_Presentation.pptx tutorials

Circle grade 7

1. Introduction to Circles A circle is a 2D shape where all points are equidistant from the center. Key elements: - Center - Radius - Diameter

2. Parts of a Circle A circle has various parts: - Chord: A line segment joining two points on the circle. - Arc: A portion of the circumference. - Sector: A region enclosed by two radii and an arc. - Circumference: The perimeter of the circle.

3. Basic Formulas Important formulas for a circle: - Area = πr² - Circumference = 2πr (where r is the radius)