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Polygon Formulas Warm Up

Authored by Tammy Greer

Mathematics

9th - 12th Grade

CCSS covered

Used 7+ times

Polygon Formulas Warm Up
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

"Find the sum of the interior angles of a regular octagon."

Which formula would you use?

Sum e=360

e = 360/n

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the sum of the interior angles of a regular Octagon?

1080 degrees

180 degrees

360 degrees

135 degrees

3.

DRAG AND DROP QUESTION

1 min • 1 pt

"Find each exterior angle of a regular pentagon."

Which formula would you use?​ ​ (a)  

e=360/n
Sum e=360
i= Sum i/n
n= 360/e

4.

DROPDOWN QUESTION

1 min • 1 pt

What is the measure of each exterior angle of a pentagon?​ (a)  

72 degrees
360 degrees
108 degrees
180 degrees

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does n represent in a polygon formula?

One interior angle

Number of angles

Number of sides

One exterior angle

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

180 degrees

3240 degrees

162 degrees

360 degrees

7.

MATCH QUESTION

3 mins • 5 pts

Match the following formulas to the key words...

Find each interior angle...

Find one exterior angle...

Find the sum of the interior angles...

What is the number of sides...?

What is the sum of the exterior angles of...?

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