Question

In triangle abc Angle B equal to angle C equals to 45 degree then the triangle is

Answer 1

Then the triangle is a right angle triangle.
As, 45 +45+a =180° ( angle sum property of a triangle)
90 + a =180
a = 180-90
a = 90°
As, one of the angle is 90 °
Therefore ABC is a right angled triangle.

Answer 2

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