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

1. 45
2. 90
3. 60

If a triangle has an angle of 90 degree, what is it called?

1. obtuse
2. acute
3. right angled

A triangle can have

1. one right angle
2. two right angles

Which of the following can form a right angled triangle?

1. 14, 15, 26
2. 12, 16, 20

Which of the following triangles are always similar?

1. Equilateral triangle
2. Isosceles triangle

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

1. 100
2. 85

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

1. 30
2. 10

The perimeter of scalene triangle with sides a, b, c is

1. a + b + c
2. 2a
3. None of these

A scalene triangle has ___ lines of symmetry

1. 2
2. no
3. 15

There is a right triangle PQR where: angle Q = 90°; angle P = angle R. What is the measure of angles P and R?

1. 85
2. 65
3. 45