Q1 of 46 Page 61

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If the area of a circle is 144 cm2, then the area of its quadrant is _______

Given, Area of a circle = 144 cm2


Thus, area of its quadrant is


= 36 cm2

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1

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Perimeter of a semicircle is ________

 1

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If the radius of a circle is 7 m, then the area of the semicircle is _______

 1

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The perimeter of the quadrant of a circle of diameter 84 cm is _______

 1

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The number of quadrants in a circle is_______