Three concurrent forces of the same magnitude are in equilibrium. What is the angle between the ...

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Three concurrent forces of the same magnitude are in equilibrium. What is the angle between the forces? Also name the triangle formed by the forces as sides
[JIPMER 2000]
(a) \( 60^{\circ} \) equilateral triangle
(b) \( 120^{\circ} \) equilateral triangle
(c) \( 120^{\circ}, 30^{\circ}, 30^{\circ} \) an isosceles triangle
(d) \( 120^{\circ} \) an obtuse angled triangle
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