Question1: What is the third angle for the triangle where angle1 = 45° and angle2 = 45°?

Options: 45° 90° 60°

Question2: If a triangle has an angle of 90 degrees, what is it called?

Options: obtuse acute right angled

Question3: Which of the following triangles have the same side lengths?

Options: Scalene Equilateral None of these

Question4: The diagonals of a rhombus are 16 cm and 12 cm, in length. The side of rhombus in length is:

Options: 20 cm 10 cm 9 cm

Question5: If triangles ABC and DEF are similar and AB=4 cm, DE=6 cm, EF=9 cm and FD=12 cm, the perimeter of triangle is:

Options: 22 cm 20 cm 18 cm