Quiz 3: Triangles

Look at the sides of this triangle. What type of triangle is this?

• Scalene

• Isosceles

• Equilateral

• Right-Angle

Look at the sides of this triangle. What type of triangle is this?

• Scalene

• Isosceles

• Equilateral

• Right-Angle

In a ____________ triangle one angle is exactly 90 degrees.

• Scalene

• Isosceles

• Equilateral

• Right-Angle

If a triangle has three equal sides and three equal angles, what type of triangle is it?

• Scalene

• Isosceles

• Equilateral

• Right-Angle

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______

• 45°

• 90°

• 180°

• 360°

Find the measure of the missing angle.

• 10°

• 50°

• 90°

• 140°

Find the measure of the missing angle.

• 40°

• 60°

• 90°

• 140°

The exterior angle of a triangle is equal to...

• 180°

• The sum of the two opposite interior angles

• 90°

• The sum of any two interior angles

Find the measure of the missing angle.

• 40°

• 60°

• 90°

• 120°

Find the measure of the missing angle.

• 55°

• 75°

• 105°

• 120°