Mark the correct alternative in each of the following: In \( \triangle A B C, \angle A=30^{\circ...

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Mark the correct alternative in each of the following:
In \( \triangle A B C, \angle A=30^{\circ}, \angle B=40^{\circ} \) and \( \angle C=110^{\circ} \). The angles of the triangle formed by
W joining the mid-points of the sides of this triangle are
(a) \( 70^{\circ}, 70^{\circ}, 40^{\circ} \)
(b) \( 60^{\circ}, 40^{\circ}, 80^{\circ} \)
(c) \( 30^{\circ}, 40^{\circ}, 110^{\circ} \)
(d) \( 60^{\circ}, 70^{\circ}, 50^{\circ} \)
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