Question

A sector of a circle with radius 10 cm has central angle 72 degree. find the area of the sector​

Answer 1

hope it helps....................

Answer 2

Answer:

Given:

• Radius = 10cm
• Angle ( Ѳ) = 72°

We know that:

Area of Sector = Ѳ/360 × πr²

$\implies$ Area of sector = 72/360 × 22/7 × 100

$\implies$ Area of sector = 1/5 × 22/7 × 100

$\implies$ Area of sector = 22/7 × 20

$\implies$ Area of sector = 62.8 cm²

Hence:

Area of sector is 62.8 cm².

Other Formulas:-

●Area of Sector = Ѳ/360 × πr²

●Length of Arc = Ѳ/360 × 2πr

●Area of Quadrant = 1/4πr²