Triangle Sum Theorem

What is the sum of all angles in a triangle?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

If angle B is 90 degrees and angle C is 27 degrees, what is angle A?

• 63 degrees

• 73 degrees

• 53 degrees

• 83 degrees

Solve for X: 52 + 10X + 8 + 2X = 180.

• 5

• 10

• 15

• 20

What is the value of X when 2X + 11 + 3X - 7 + 2X + 1 = 180?

• 30

• 25

• 20

• 35

If the sum of angles in a triangle is 180 degrees, what is the sum if you have two triangles?

• 450 degrees

• 180 degrees

• 270 degrees

• 360 degrees

What theorem states that the sum of all angles in a triangle is 180 degrees?

• Pythagorean Theorem

• Triangle Inequality Theorem

• Triangle Angle Sum Theorem

• Law of Sines

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Find the measure of the missing angle.

• 30^o
• 110^o
• 150^o
• 40^o

Find the measure of each angle indicated.

• 50
• 20
• 29
• 48

Find the measure of each angle indicated.

• 30
• 39
• 70
• 28