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### Grade 7 - Mathematics9.20 Angle of a Sector

 Example: Find the angle of a sector of a circle whose area is 1/4th of the circle. Solution: Area of a circle = pr2. Area of a sector is = q/360opr2. Here (1/4)pr2 = (q/360o)pr2. i.e 1/4 = q/360o i.e q = 360/4 = 90o. Directions: Read the above example carefully and answer the following questions. Also write 10 examples of your own.

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### Grade 7 - Mathematics9.20 Angle of a Sector

 Q 1: Find the angle of the sector of a circle whose area is 3/5 of the circle.238°None of these228°216° Question 2: This question is available to subscribers only!

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