2. One of the angles of a triangle is \small 80^{\circ} and the other two angles are equal. Find the measure of each of the equal angles.

Answers (1)

Let the two same angles in triangle be x.

Now,  As we know the sum of internal angles of a triangle is 180. so,

80^0+x+x=180^0

2x=180^0-80^0

2x=100^0

x=50^0.

Hence both other angles are 50^0 each.

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