Find the area, circum-radius and in-radius of the pedal triangle.

Find the ratio of circum radius (R) to inradius (r) of a triangle whose sides are 4,6 and 8.

If the sides of the triangle are the roots of the equation x^(3)-2x^(2)-x-16 =0, then the product of the in-radius and circum-radius of the triangle ,is

If the sides of the triangle are the roots of the equation x^(3)-2x^(2)-x-16 =0, then the product of the in-radius and circum-radius of the triangle ,is

In a triangle ABC, angleC=90^(@) , r and R are the in-radius and circum-radius of the triangle ABC respectively, then 2(r+R) is eqaul to

Find the circum-centre and the circum-radius of a triangle ABC formed by the vertices A(2,-2) , B (-1,1) and C(3,1).

If R be the circum radius and r the in radius of a triangle ABC, show that Rge2r

If R be the circum radius and r the in radius of a triangle ABC, show that Rge2r

In an equilateral triangle the ratio of circum-radius and in-radius is