The polar coordinates of the vertices of a triangle are (0, 0), (3,`pi/2`) (3,`pi/6`). Then the triangle is (b) isosceles (a) right angled (d) none of these (c) equilateral

A triangle with vertices (4,0),(-1,-1),(3,5) show that triangle is isosceles and right angled.

If a vertex, the circumcenter, and the centroid of a triangle are (0, 0), (3,4), and (6, 8), respectively, then the triangle must be (a) a right-angled triangle (b) an equilateral triangle (c) an isosceles triangle (d) a right-angled isosceles triangle

If a vertex, the circumcenter, and the centroid of a triangle are (0, 0), (3,4), and (6, 8), respectively, then the triangle must be (a) a right-angled triangle (b) an equilateral triangle (c) an isosceles triangle (d) a right-angled isosceles triangle

What kind of triangle is formed by A(1, 2), B(4, 3) and C(5, 6)? (a)Equilateral (b)Isosceles (c)Right Angle (d)None of these

If all the vertices of a triangle have integral coordinates,then the triangle may be (a) right- angle(b) equilateral (c) isosceles(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

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 triangle ABC,a^(2)+b^(2)+c^(2)-ac-sqrt(3)ab=0 ,then triangle is necessarily. 1) isosceles 2) right angled 3) obtuse angled 4) equilateral