diameter is 10cm and the central angle is 72 degree. Find the are of the sector.
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Given:
Radius = 10cm
Angle ( Ѳ) = 72°
We know that:
Area of Sector = Ѳ/360 × πr²
Area of sector = 72/360 × 22/7 × 100
Area of sector = 1/5 × 22/7 × 100
Area of sector = 22/7 × 20
Area of sector = 62.8 cm²
Hence:
Area of sector is 62.8 cm².
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