[" 45.In "/_ABC," if "sqrt(3)r+a=sqrt(3)r+b=s" then the "],[" triangle is "],[[" 1) right angled ",2" ) isosceles "],[" 3) equilateral "," 4) scalene "]]

In Delta ABC if sqrt(3)r+a=sqrt(3)r+b=s then the triangle is

ln Delta BC, if sqrt(3)r+a=sqrt(3)r+b=s then

If in a triangle (1-(r_1)/(r_2))(1-(r_1)/(r_3))=2 then the triangle is right angled (b) isosceles equilateral (d) none of these

If in a triangle (1-(r_1)/(r_2))(1-(r_1)/(r_3))=2 then the triangle is right angled (b) isosceles equilateral (d) none of these

If in a triangle (1-(r_1)/(r_2))(1-(r_1)/(r_3))=2 then the triangle is right angled (b) isosceles equilateral (d) none of these

In any triangle ABC if 2cos B=(a)/(c), then the triangle is(A) Right angled (C) Isosceles (B) Equilateral (D) None of these

If in a triangle (1-(r_(1))/(r_(2)))(1-(r_(1))/(r_(3)))=2 then the triangle is right angled (b) isosceles equilateral (d) none of these

The complex numbers z_1, z_2 and z_3 satisfying (z_1-z_3)/(z_2-z_3) =(1- i sqrt(3))/2 are the vertices of triangle which is (1) of area zero (2) right angled isosceles(3) equilateral (4) obtuse angled isosceles

The complex numbers z_1 z_2 and z3 satisfying (z_1-z_3)/(z_2-z_3) =(1- i sqrt(3))/2 are the vertices of triangle which is (1) of area zero (2) right angled isosceles(3) equilateral (4) obtuse angled isosceles