For a regular polygon, let r and R be the radii of the inscribed and the cirumscribed circles, respectively. A false statement among the following is

The false statement among the following is

For a regular polygon, let r and R be the radii of the inscribed and the circumscribed circles. A false statement among the following is There is a regular polygon with r/R=1/(sqrt(2)) (17) There is a regular polygon with r/R=2/3 (30) There is a regular polygon with r/R=(sqrt(3))/2 (47) There is a regular polygon with r/R=1/2 (60)

Which is the false statement among the following:

The statement which is false among the following is

Mark the false statement w.r.t. frog

Prove that the area of a regular polygon hawing 2n sides, inscribed in a circle, is the geometric mean of the areas of the inscribed and circumscribed polygons of n sides.

In the ionic compound AB the ratio r_(A+):r_(B-) is 0.414 . Indicate the correct statement among the following:

Let ABC be a triangle with incentre I and inradius r. Let D, E, F be the feet of the perpendiculars from I to the sides BC, CA and AB, respectively, If r_(2)" and "r_(3) are the radii of circles inscribed in the quadrilaterls AFIE, BDIF and CEID respectively, then prove that r_(1)/(r-r_(1))+r_(2)/(r-r_(2))+r_(3)/(r-r_(3))=(r_(1)r_(2)r_(3))/((r-r_(1))(r-r_(2))(r-r_(3)))

Regular pentagons are inscribed in two circles of radius 5 and 2 units respectively. The ratio of their areas is

Mark the false statement w.r.t. cockroach