Sum of Angles in a Triangle

What is the size of the missing angle?

Tags

CCSS.8.G.A.5

What is the angle sum of a triangle?

Tags

CCSS.8.G.A.5

What is the size of the missing angle?

Tags

CCSS.8.G.A.5

What is the size of the missing angle?

Tags

CCSS.8.G.A.5

Find the size of the missing angle.

Tags

CCSS.7.G.B.5

Sum of all interior angles of a triangle MUST be 180 degrees?

• Yes

• No

• I don't know

Tags

CCSS.8.G.A.5

What is the reason that showing the interior angles of a triangle is 180 degrees?

• angle sum of triangles

• angle some of triangle

• angel sum of triangle

• Angle sum of triangle

Tags

CCSS.8.G.A.5

In triangle DEF, Angle D is x degrees, Angle E is 2x degrees, Angle F is 3x degrees. What is the value of x?

• 10

• 20

• 30

• 60

Tags

CCSS.8.G.A.5

In triangle ABC, Angle A is 40 degrees, Angle B is 50 degrees

what is angle C?

• 80 degrees

• 90 degrees

• 100 degrees

• 110 degrees

Tags

CCSS.8.G.A.5

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

• 32

• 39

• 45

• 54

Tags

CCSS.8.G.A.5