If `a = 5,b = 12,c = 13` ,then circumradius `R`=?

If the area of the triangle ABC is a^(2)-(b-c)^(2), then its circumradius R=

If a=5, b=12 and c=13, find tanA.

In triangle ABC, R (b + c) = a sqrt(bc) , where R is the circumradius of the triangle. Then the triangle is

STATEMENT-1: IFR be the circumradius of a Delta ABC, then circumradius of its excentral Delta I_(1)I_(2)I_(3), is 2R STATEMENT-2: If circumradius of a triangle be R, then circumradius of its pedal triangle ism (R)/(2) .

If in a triangle,R and r are the circumradius and inradius respectively,then the HM of the exradii of the triangle is

If R_1 is the circumradius of the pedal triangle of a given triangle A B C ,a n dR_2 is the circumradius of the pedal triangle of the pedal triangle formed, and so on R_3,R_4 then the value of sum_(i=1)^ooR_i , where R (circumradius) of A B C is 5 is 8 (b) 10 (c) 12 (d) 15

Let a,b,c are sides and R is the circumradius of a triangle ABC such that R(b+c)=a sqrt(bc) if B+C=(lambda pi)/(mu),lambda,mu in N and are coprime then lambda+mu is

If the area of the triangle ABC is a^(2)-(b-c)^(2) then its circumradius R is

If in DeltaABC CosB=3/5 , AB=5 and R=5 ( R is circumradius). then find area of Delta