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15. Areas Related to Circles
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Q9 of 68 Page 15

The area of a sector of a circle of radius 5cm is 5cm2. Find the angle contained by the sector.


Area of sector = 5π cm2


Radius = 5cm


5π =



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A sector of a circle of radius 4cm contains an angle of 30°. Find the area of the sector.

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AB is a chord of a circle with centre O and radius 4cm. AB is of length 4 cm. Find the areas of the sector of the circle formed by chord AB.

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Questions · 68
15. Areas Related to Circles
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