1. What is the third angle for the triangle where angle1 = 45° and angle2 = 55°?

80° 50° 90°

2. Each angle of a equilateral triangle is of ___?

90° 45° 60°

3. Which of the following triangles have the same side lengths?

Scalene Isosceles Equilateral

4. The measure of highest angle of a right angled triangle is ____?

90° 45° 80°

5. An ________ angled triangle is a triangle in which all the interior angles are less than 60°.

acute obtuse right