The length of the diameter of the circumcircle of the triangle with vertices (a,0) , (a,b) and (0,b) is

The length of the diameter of the circum circle of the triangle with vertices (a,0),(a,b) and (0,b) is

Circumradius of the triangle with vertices (2a,0),(2a,2b),(0,2b) is

The diameter of the circumcircle of the triangle whose sides 61,60,11 is

The triangle with vertices (a,b),(a,a),(b,a) is

The diameter of the circumcircle of a triangle with sides 5 cm, 6 cm and 7 cm, is

The area of a triangle with vertices A(3,0),B(7,0) and C(8,4) is

The distance between the orthocentre and the circumcentre of the triangle with vertices (0, 0), (0, a) and (b, 0) is