Question
A circular sector has a radius of 14 cm and an area of 154
cm². What is the angle formed at the center by the arc? (Take π = 22/7)Solution
ATQ,
Area of sector = (A/360) × π × radius²
So, (A/360) × (22/7) × 14² = 154
⇒ (A/360) × 616 = 154
⇒ A = (154 × 360) / 616
⇒ A = 90°
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