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EⓍⓅⓁⒶⒾⓃ the areas related to circles lesson




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Answer 1

Answer:

NCERT pad lo sufficient h bro. theorem and examples are must

Step-by-step explanation:

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Answer 2

Area of a circle is the region occupied by the circle in a two-dimensional plane. ... The unit of area is the square unit, such as m2, cm2, etc. Area of Circle = πr2 or πd2/4, (square unit) where π = 22/7 or 3.14. This area formula is useful for measuring the space occupied by a circular field or a plot.

Formulas on Areas Related to Circles

Circumference of the circle =2πrunits.

Area of the circle =πr2sq. ...

Area of the semi-circle =12πr2sq. ...

Perimeter of the semi-circle =(πr+2r)=r(π+2)

Area of a quadrant of a circle =14πr2.

Any chord AB divides circle into two parts. The bigger part is known as major segment and smaller one is called minor segment. Area of major segment OAQB = πr2 — area of minor segment APB. Area of segment of a circle = Area of the corresponding sector — Area of the corresponding triangle.

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