Question

one of the exterior angle of a triangle ABC measures 150 degree if one of the interior opposite angle is 75 degree find the other in 3 interior opposite angle what type of triangle is this?​

Answer 1

Answer:

The another interior opposite angle is 75 ° and The given triangle is isosceles. Since the two angles are equal So, the opposite sides of equal angles are equal . So, The given triangle is isosceles .

Answer 2

Answer:

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One exterior angle of triangle ABC = 150 deg.

One interior opposite angle of triangle ABC = 75 deg.

So the other interior opposite angle of triangle ABC = 150-75 = 75 deg.

Hence ABC is an isosceles triangle.