Circles MATHS - Circles

In the figure, O is the centre of the circle. Find the measure of the angle marked x:

In the figure, O is the centre of the circle. Find the measure of the angle marked x:

In the figure, O is the centre of the circle. Find the measure of the angle marked x:

In the figure, O is the centre of the circle. Find the measure of the angle marked x:

In the figure, O is the centre of the circle. Find the measure of the angle marked x:

In the adjoining figure, name :

(i) all the radii
(ii) all the diameters
(iii) all the chords
(iv) a minor arc
(v) a major arc
(vi) a minor segment
(vii) a major segment
(viii) a minor sector
(ix) a major sector

A minor arc is bigger than a semi-circle.

One and only one tangent can be drawn to a circle from a point outside it.

One and only one tangent can be drawn to pass through a point on the circle.

A secant of a circle is a segment having its end points on the circle.

A circle consists of an infinite number of points.

A __________ of a circle divides the circular region into two parts each called a segment.

A part of a circle bounded by an __________ and the two __________ at its ends is called a sector.

A part of a circle bounded by an __________ and a __________ is called a segment.

The perimeter of a circle is called its __________ .

Every point on a circle is __________ from its centre.

How many circles can be drawn to pass through 3 non-collinear points?

How many circles can be drawn to pass through two given points?

How many circles can be drawn with a given point as the centre?

In the adjoining figure, O is the centre of the circle. The measure of the angle marked x is :

P and Q are the centres of two circles. If they are 15 cm apart and the radius of the bigger circle is the same as the diameter of the smaller circle, then the radius of the bigger circle is :