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

Area of triangle ABC is a^(2) - (b-c)^(2) then tan A =

If the area of triangle ABC is b^(2) - (c - a)^(2) then tan B=

AL, BM and CN are perpendicular from angular points of a triangle ABC on the opposite sides BC, CA and AB respectively. Delta is the area of triangle ABC, (r ) and R are the inradius and circumradius. Radius is the circum circle of Delta LMN is

In Delta ABC, if a=5, A=30^@ , then the circumradius is

In a triangle ABC if a: b: c= 4:5:6 then ratio between its circumradius and inredius is

In a triangle ABC if a: b: c= 4:5:6 then ratio between its circumradius and inredius is

If H is the orthocentre of the triangle ABC, R = circumradius and P =AH +BH+CH, then

If Delta =a^2-(b-c)^2 , is the area of the triangle ABC, then tan A=