Finding the Sum of Interior Angles of a Triangle

Solve for x.

• 16

• 11

• 50

• 6

Tags

CCSS.8.G.A.5

In a triangle, how many total degrees are there?

• 100%

• 180 degrees

• it varies

• 360 degrees

Tags

CCSS.8.G.A.5

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

• 80

• 100

• 60

• 90

Tags

CCSS.8.G.A.5

The interior angles of a triangle always add to what?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

Tags

CCSS.8.G.A.5

• A) 80°

• B) 90°

• C) 180°

• D) 260°

Tags

CCSS.8.G.A.5

The sum of the interior angles in a triangle is ...

• 360 degrees

• 180 degrees

• 90 degrees

• 540 degrees

Tags

CCSS.8.G.A.5

Using the theorem for the sum of the interior angles of a triangle, find the third angle for each triangle.

Tags

CCSS.8.G.A.5

Solve for x.

• 63.2

• 116.8

• 135.7

• 45.3

Tags

CCSS.8.G.A.5

Find the sum of the measures of the marked angles

Tags

CCSS.8.G.A.5

Find the measure of the indicated angle. (remember that the sum of interior angles is equal to 180 degrees)

• 95

• 85

• 35

• 45

Tags

CCSS.8.G.A.5