Classifying Triangles and Solving for Missing Angles

Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

Solve for x.

• 16

• 11

• 50

• 6

If two of the angles of a triangle are 30 and 70 degrees, the third angle measures...

• 80

• 100

• 60

• 90

What is the third angle of a triangle whose 1st angle is 34 and 2nd angle is 101?

• 32

• 39

• 45

• 54

What do the angles in an equilateral triangle measure?

• 30, 60, 90

• 45, 45, 90

• 60, 60, 60

• 35, 55, 90

• 65^o
• 30^o
• 115^o
• 180^o

• 65^o
• 115^o
• 30^o
• 90^o

Find the measure of the missing angle.

• 47

• 57

• 53

• 133

Find the measure of the missing angle.

• 139°

• 66°

• 138°

• 116°