1.

Find the area of a sector of circle of radius 28cm and central angle 45°​

Answer»

✭ Appropriate Question :

  • FIND the area of a sector of circle of radius 28cm and CENTRAL angle 45°

✭ Required Solution :

✩ Formula used here :

  • Area of sector of circle = πr²/360 × θ

✭ Values given to us :

  • Radius (r) = 28cm

  • Central Angle (θ) = 45°

✭ Putting in formula :

  • Area of sector = 22/7 × (28) ²/ 360 × 45°

  • 22 × 28 × 28 / 7 × 45° /360 cm

  • 22 × 4 × 28 × 1/8 cm

  • 22 × 14 cm

  • Area of sector of circle = 308 cm²

✩ Area of sector of circle = 308 cm²✩

✩ Note :-

  • Required DIAGRAM is in attachment ! :D

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