Triangle Quiz

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

45° 60° 90°

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

obtuse acute right angled

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

a+b+c 2a none of these

Which of the following triangles are always similar?

equilateral triangle Isosceles triangle none of these

A triangle can have

one right angle three right angles two right angles