The measure of the external angle of a regular octagon is:

Circles having three points in common

The portion of a circle between two radii and an arc is called:

How many common tangents can be drawn for two intersecting circles?

How many tangents can be drawn from a point outside the circle?

Tangent is a line touching a circle at:

If the two circles touches externally, then the distance between their centre is equal to the:

How many common tangents can be drawn for two touching circles?

The measure of the external angle of a regular hexagon is:

The length of the diameter of a circle is how many times the radius of the circle?

The lengths of two transverse tangents to pair of circles are:

The circumference of a circle is a called:

How many common tangents can be drawn for two disjoint circles?

The circle which touches the three sides of a triangle is called:

If the in-centre and circum-cenrtre of a triangle coincide, the triangle is:

If the distance between the centre of two circles is equal to the sum of their radii, then the circles will:

Angle inscribed in a semi-circle is:

A line intersecting a circle is called:

The tangent and radius of the circle at the point of contact are:

If two circles touch each other, their centre and point of contact are:

Tangents drawn at the end points of the diameter of a circle are: