In an equilateral triangle, if inradius is a rational number then

Area of an equilateral triangle

In an equilateral triangle, the inradius, circumradius, and one of the exradii are in the ratio

In an equilateral triangle, the inradius, circumradius, and one of the exradii are in the ratio 2:4:5 (b) 1:2:3 (c) 1:2:4 (d) 2:4:3

In an equilateral triangle, inradius r , circumradius R and ex-radius r_1 are in A.P. (b) G.P. (c) H.P. (d) none of these

In an equilateral triangle,the inradius and the circumradius are connected by r=4Rb .r=R/2 c.r=R/3 d.none of these

In an equilateral triangle the inradius and the circum-radius is connected by (1)r=4R(2)r=(R)/(2)(3)r=(R)/(3)(4)r=(r)/(sqrt(3))

Symmetry of an equilateral triangle

For an equilateral triangle, the ratio of the inradius and the outer-radius is