Triangle Quiz?

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

45° 60° 90°

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

acute obtuse right-angled

3. A triangle that has no equal sides and no equal angles is known as :

scalene triangle isosceles triangle equilateral triangle

4. Area of a triangle with base b and height h is represented by :

2 × bh 1⁄2 × bh 2⁄bh

5. If ABC is an equilateral triangle, then each angle equals to :

45° 60° 90°