Area Related to...

The length of an arc of a sector of a circle of radius r units and of centre angle $$\theta$$ is $$\displaystyle \frac{\theta}{360^{\circ}} \times \pi r^2$$.

If an arc of a circle of radius $$14\ cm$$ subtends an angle of $$60^{\circ}$$ at the centre, then the length of the arc is $$\displaystyle \dfrac{44}{3}\ cm$$.

In a circle of radius 21 cm, an arc subtends an angle of $$60^{\circ}$$ at the centre the length of the arc is 22 cm.

A wire in the form of circle of diameter 42 cm is cut and bent to form a square. The side of the square is

A set of points equidistant from a fixed point in a plane figure is called

The circumference of a circular playground is 528 m. Find the total expenditure of repairs of the ground at the rate of Rs. 1.50 per square metre $$\displaystyle (\pi = \frac{22}{7})$$

Fixed point in the circle is called _____ of the circle.

If the length of the largest chord of a circle is $$17$$ cm, find the radius of a circle.

In a circle of radius 21 cm an arc subtends an angle of $$\displaystyle 56^{\circ} $$ at the centre of the circle. The length of the arc is

In the  given figure, find the area of the unshaded portion within the rectangle.