Angles and Triangles

Identify the type of triangle.

• Acute

• Right

• Obtuse

Identify the type of triangle.

• Acute

• Right

• Obtuse

Identify the type of triangle.

• Equilateral

• Isoceles

• Scalene

Identify the type of triangle.

• Equilateral

• Isoceles

• Scalene

Solve for the missing angle.

• 45

• 90

• 30

• 20

Solve for the missing angle.

• 45

• 90

• 180

• 110

Two angles in a triangle measure 30° and 105°. What is the measure of the third angle in the triangle?

• 45°

• 65°

• 75°

• 105°

Which words best describe this triangle?

• Right

• Acute

• Obtuse

• Isosceles

• Scalene

Leah drew a triangle on a piece of paper. She made one side 5 inches long, another side 4 inches long, and the final side 3 inches long. What kind of triangle did she create?

• Equilateral

• Scalene

• Straight

• Isosceles

Bella has a window in her bedroom shaped like a triangle. Each angle of the triangle measures less than 90 degrees. What kind of triangle is her window?

• Straight

• Acute

• Obtuse

• Right