Quiz on Triangles

1] What is the Third Angle for the Triangle where Angle 1 = 45° & Angle 2 = 45°

45° 60° 90°

2] An isosceles triangle has _________

No congruent sides 2 congruent sides 3 Congruent Sides

3] Which of the following triangles are always similar ?

Equilateral triangle Isosceles triangle Scalene

4] If one angle of a triangle is 50° and second angle is 30°,then what type of triangle it is ?

Acute Obtuse Right-Angled

5] All 3 interior angles of a triangle add up to ____ ?

90 degrees 180 degrees 360 degrees