Question

Central angle 72 degree diameter is equal to 10 cm solution

Answer 1

Answer:

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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Answer 2

Step-by-step explanation:

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