Unit 5 Triangles Quiz

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

Classify this triangle by its sides and angles.

• obtuse & equilateral

• obtuse & isosceles

• right & isosceles

• right & equilateral

Classify this triangle by its sides and angles.

• obtuse & isosceles

• right & scalene

• right & isosceles

• obtuse & scalene

Classify this triangle by its sides and angles.

• right & scalene

• acute & isosceles

• right & isosceles

• acute & scalene

Classify the following triangle in as many ways as possible. 

• Isosceles, Acute
• Isosceles, Obtuse
• Scalene, Obtuse
• Equilateral, Acute

Which would be the best classification for the triangle shown?

• acute isosceles
• right scalene
• acute scalene
• obtuse scalene

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

• Acute Isosceles
• Equilateral
• Obtuse Scalene
• Obtuse Isosceles

Find the measure of each angle indicated.

Solve for x.

• -11
• 9
• -9
• 10

Find the measure of the indicated angle.