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Intro to Polygons

Authored by Beth Anderson

Mathematics

10th Grade

CCSS covered

Used 13+ times

Intro to Polygons
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21 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the SUM of the interior angle measures in a pentagon ?

180°

540°

720°

360°

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the sum of the interior angles in a 24-gon?

3960

360

4320

4280

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

1620

900

1080

1260

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the name of a 12-sided polygon?

Dodecahedron
Polygon
Decagon
Dodecagon

Tags

CCSS.2.G.A.1

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How do you find the sum of the exterior angles of a polygon?

180(n-2)
180
(180(n-2))/n
360

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the sum of the exterior angles of a 20-gon?

180
360
3240
162

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the measure of ONE interior angle in a regular octagon?

1080°

180°

135°

120°

Answer explanation

The total measure of the interior angles of an octagon is (8-2) (180) = 1080.

1080 divided by 8 is 135.

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