It is known that the triangle ABC is an isosceles triangle with an angle of 3 = 105 ° and the degree of angle 2 and angle 1 On the course evaluation

It is known that the triangle ABC is an isosceles triangle with an angle of 3 = 105 ° and the degree of angle 2 and angle 1 On the course evaluation

Angle 3 = 105 degrees, then the other two must be equal, so angle 2 and angle are equal and equal to 37.5 degrees