Triangle Quiz

1) What is the third angle for the triangle where angle1 = 45° and angle2 = 45°?

45° 90° 60°

2) If a triangle has an angle of 90 degrees, what is it called?

obtuse acute right angled

3) A triangle can have

one right angle two right angles

4) Which of the following can form a right angled triangle?

14, 15, 26 12, 16, 20

5) Which of the following triangles are always similar?

Equilateral triangle Isosceles triangle

6) If one angle of a triangle is obtuse, then which one of the following is the possible measure of remaining angles?

100° 85°

7) If the largest angle in a triangle is 70°, what is the least possible value of the smallest angle of the triangle?

30° 10°