Home
Class 11
MATHS
If inside a big circle exactly n(nlt=3) ...

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)`

Promotional Banner

Similar Questions

Explore conceptually related problems

If inside a big circle exactly n(n ge3) 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

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 (a) r(1+cos e cpi/n) (b) ((1+tanpi/n)/(cospi/pi)) (c) r[1+cos e c(2pi)/n] (d) (r[s inpi/(2n)+cos(2pi)/n]^2)/(sinpi/n)

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[sin pi/(2n)+cospi/(2n)]^2)/(sinpi/n)

Three equal circles each of diameter d are drawn on a plane in such a way that each circle touches the other two circles. A big circle is drawn in such a manner that it touches each of the small circles internally. The area of the big circle is

The centre, radius of the circle r^(2) - 8 r cos (theta - (pi)/(3) ) + 12 =0 is

Three circles of radii 1,2,3 touch other externally.If a circle of radiusr touches the three circles,then r is

C_1 is a circle of radius 1 and touching both the axis . C_2 is another circle which touch both the axis and also circle C_1 whose radius gt1 then radius of C_2 is

A circle C_(1), of radius 2 touches both x -axis and y -axis.Another circle C_(1) whose radius is greater than 2 touches circle and both the axes.Then the radius of circle is

A circle C_1 , of radius 2 touches both x -axis and y - axis. Another circle C_2 whose radius is greater than 2 touches circle and both the axes. Then the radius of circle is

A circle of radius R touches externally a set of 12 circles each of radius r surrounding it.Each one of the smaller circles touches two circles of the set,then ((R)/(r))=sqrt(m)+sqrt(n)-1 where m,n in N and m+n is