Polygons and their angles

Find the sum of the measures of the interior angles of the figure.

• 1080

• 720

• 540

• 900

Find the sum of the measure of the interior angles of the figure.

• 1080

• 1440

• 1260

• 360

What is the measure of one angle in a regular 20-gon.

What is the measure of one angle in a regular 40-gon?

• 180

• 6840

• 171

• 189

Find angle x

• 247^o

• 67^o

• 157^o

• 203^o

What must be true about angles 1 and 4.

select two correct answers

• they are vertical angles

• they are congruent angles

• they are adjacent angles

• they have a sum 180 degrees

• they are right angles

Triangles have angle measures that have a sum of ..... degrees.

What would the measure for angle a be?

Vertical angles are ​ (a)   from each other and have the ​ (b)   angle measure.

• opposite
• same
• different
• adjacent
• supplementary
• complementary