Homework Check H1&H2

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

Tags

CCSS.7.G.B.6

Find the value of X.

• 100
• 120
• 125
• 130

Tags

CCSS.4.MD.C.5

CCSS.4.MD.C.7

CCSS.4.OA.A.3

Which formula represents how to find the interior angle sum of any polygon?

• (number of sides - 2) x 180

• (number of sides + 2) x 180

• number of sides x 180

• number of sides x 360

Tags

CCSS.7.G.B.6

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

necessary.

• A

• B

• C

• D

Tags

CCSS.7.G.B.5

Find the measure of angle E.

• 9
• 97°
• 48°
• 79°

Tags

CCSS.HSG.C.A.3

What is the formula for the sum of exterior angles in a polygon?

• 180(n−2)
• 180(n−2)÷n
• 360
• 360/n

If an exterior angle of a regular polygon has a measure of 36 degrees, how many sides does it have?

• 10
• 3
• 7
• 11

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

What is the measure of a single exterior angle for a regular pentagon?

• 360
• 108
• 72
• 36

Tags

CCSS.HSG.CO.A.1

If an interior angle of a regular polygon has a measure of 120 degrees, how many sides does it have?

• 6
• 12
• 5
• 8

Tags

CCSS.HSG.CO.A.1

Solve for x

• 45
• 12
• 90
• 2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3