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)`

In an equilateral triangle show that the in-radius and the circum-radius are connected by r =R/2.

In an equilateral triangle show that the in-radius and the circum-radius are connected by r =R/2.

In an equilateral triangle show that the in-radius and the circum-radius are connected by r =R/2.

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 circumradius are connected by r=4R b. r=R//2 c. r=R//3 d. none of these

In an equilateral triangle with usual notations the value of (27r^(2)R)/(r_(1)r_(2)r_(3)) is equal to

In an equilateral triangle with usual notations the value of (27r^(2)R)/(r_(1)r_(2)r_(3)) is equal to

In a triangle ABC , let angleC=(pi)/2 . If r is the in-radius and R is the circum-radius of the triangle , then 2 (r + R) is equal to

ABC is an equilateral triangle of side 4cm. If R,r, and h are the circumradius, inradius, and altitude, respectively, then (R+r)/(h) is equal to