Concept of Circle

Define circular region of a circle.

Find the points that lie in the exterior region of circle shown above

Identify the points that lie in the exterior region of circle.

Different between a secant and a chord

Define the secant of a circle. Write the formula

From the below figure, identify the points in the interior of the circle.

The region inside the circle is called _____ of the circle. 

Largest chord of the circle is :

The point of concurrence of three interior angle bisectors of a triangle is called 

Find the length of the chord $AC$ where $AB$ and $CD$ are the two diameters perpendicular to each other of a circle with radius $4\sqrt{2} \mathrm{cm}$ and also find $\angle OAC$ and $\angle OCA$.

Are two circles with the same centre are equal.Explain the answer.

Find value of $x$,if $\angle N={\left(\frac{2x}{3}\right)}^{°}$ in the given figure,

Show that, $\angle A$ and $\angle O$ are supplementary.If $\mathrm{AP}$ and $\mathrm{AQ}$ are tangents to circle with centre $\mathrm{O}$.

In the given figure $O$ is the centre of the circle whose diameter is $MN$. Measures of some central angles are given in the figure,then find the $\angle AOB$ and $\angle COD$

Find the area of circle whose circumference is $44 cm$ and also find the area of quadrant of circle.(Take $\pi =\frac{22}{7}$)

Three students Priyanka, Sania and David are protesting against killing innocent animals for commercial purposes in a circular park of radius $20 m$. They are standing at equal distances on its boundary by holding banners in their hands. Find the distance between each of them.

The circles are touching internally at P, then AB is

If AE and BF are equal to 1 cm each and PT=2 cm then what is the area of ABCD.

Find x, if AB is tangent to circle with centre O. A is point of contact of touch AB to a circle with O as a centre. Find x if $\angle ABO={20}^{\circ }$

OABC and CFED are rectangles. From the information in the diagram find the value of x.