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Learn how to calculate the area and arc length of a circle sector with examples for different angles and radii. Practice exercises included.
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Shape and Space SECTOR OF CIRCLE
AREA OF SECTOR AND ARC LENGTH • It’s possible to find the area and arc length of any sector of the circle • Example • Quarter circle = 90° Radius = 5cm 5cm
AREA OF SECTOR AND ARC LENGTH • It’s possible to find the area and arc length of any sector of the circle • Example • Half of a circle = 180° Radius = 7.2cm 7.2cm
7.8cm 3.5cm 5cm 2.3cm 4.9cm 8.8cm 9.5cm 7.1cm 9.9cm EXERCISES • Calculate the area and arc length of the following 2.3cm