Question

One of the exterior angle of a ABC measures 150. If one
of the interior opposite angle is 75°. Find the other interior
opposite angle. What type of triangle is this?
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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 .

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Answer 2

Answer:

If in triangle ABC one exterior angle is 150° then the interior angle along with this side will be 30° as a rule of linear angle.

If the other angle is 75° then by angle sum property the third angle would be 180-(75+30)=75°.

Hence the triangle formed will be isoceles triangle.