How many tangents can a circle have?

How many parallel tangents can a circle have ?

How many tangents can be drawn froman external point to a circle .

How many tangents can be drawn from a point lying inside a circle?

How many tangents to the circle x^(2)+y^(2)=3 are normal tothe ellipse (x^(2))/(9)+(y^(2))/(4)=1?

Two circles touch internally at P.How many tangents can be drawn to the circles from an external point? What is the relation between the tangents?

How many common tangents can be drawn when two circles touch each other internally.

How many common tangents can be drawn to two circles, touching each other externally?