Triangle Sum Practice

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

• 45°

• 90°

• 180°

• 360°

Find the measure of the angle indicated. 

• 139°
• 66°
• 138°
• 116°

Tags

CCSS.8.G.A.5

What is the third angle of a triangle whose 1st angle is 79 and the 2nd angle is 43?

• 43
• 58
• 72
• 101

Tags

CCSS.8.G.A.5

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Tags

CCSS.7.G.B.5

If all three angles are exactly the same measure, how big is each angle?
Hint:    x + x + x  = 180

• 180 degrees
• 90 degrees
• 50 degrees
• 60 degrees

Tags

CCSS.8.G.A.5

What is the measure of angle x?

• 45
• 60
• 65
• 75

Which of the following terms best describes Angle d?

• Remote interior angle
• Corresponding angle
• Exterior angle
• Interior angle

What is the measure of angle b?

• 36^o
• 56^o
• 63^o
• 117^o

Tags

CCSS.8.G.A.5

• A
• B
• C
• D

Tags

CCSS.8.G.A.5

Classify each triangle by its angles and sides

• Obtuse scalene

• Right Isosceles

• Equilateral

• Acute scalene