Interior Angle Sum Theorem

Solve for x in the triangle below.

• x = 10

• x = 35

• x = 9

• x = 11

Solve for x in the triangle below.

• x = 6

• x = 44

• x = -6

• x = 74

Solve for x in the triangle below.

• x = 9.7

• x = 19

• x = 5

• x = 12.6

Solve for x in the triangle below.

• x = 10

• x = 41

• x = 11

• x = 29

Solve for x in the triangle below.

• x = 11

• x = 79

• x = -11

• x = -20

Find the interior angle SUM for each polygon. Round your answer to the nearest tenth if necessary.

• 720º

• 1080º

• 360º

• 1440º

Find the interior angle SUM for each polygon. Round your answer to the nearest tenth if necessary.

• 1440º

• 1800º

• 2520º

• 2700º

Find the interior angle SUM for each polygon. Round your answer to the nearest tenth if necessary.

• 1080º

• 1440º

• 900

• 360º

Find the interior angle SUM for each polygon. Round your answer to the nearest tenth if necessary.

• 4140º

• 3240º

• 3600º

• 5040º

Find the measure of ONE INTERIOR angle in each regular polygon. Round your answer to the

nearest tenth if necessary.

• 135º

• 144º

• 120º

• 140º