A circle is drawn in a sector of a larger circle of radius r, as shown in the adjacent figure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the small circle is-

In the adjacent figure, which lines are tangents to the circle ?

Construct a tangent to a circle of radius 3.7cm at any point .

A circle of radius 2 has its centre at (2, 0) and another circle of radius 1 has its centre at (5, 0). A line is tangent to the two circles at point in the first quadrant. The y-intercept of the tangent line is

One chord of a circle is known to be 10 cm. The radius of this circle must be _____

The angle subtended at the centre of a circle , by a chord whose length is equal to the radius of the circle will be

Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60°.

If inside a big circle exactly n(nlt=3) small circles, each of radius r , can be drawn in such a way that each small circle touches the big circle and also touches both its adjacent small circles, then the radius of big circle is r(1+cos e cpi/n) (b) ((1+tanpi/n)/(cospi/pi)) r[1+cos e c(2pi)/n] (d) (r[s inpi/(2n)+cos(2pi)/n]^2)/(sinpi/n)

If the radius of the circle is r then find the area of circle?

Construct a circle of radius 2.5 cm. Take any point on the circle and draw a tangent to the circle at that point.