
Unit 11 Part 2 - Interior/Exterior Angles Practice
Authored by Tabitha Benedict
Mathematics
10th Grade
CCSS covered
Used 39+ times

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16 questions
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1.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Type the formula to find the sum of the interior angles of a regular polygon.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Given the polygon shown here, what is the sum of the interior angles?
720
1080
900
640
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Type the formula to find an individual angle of a regular polygon.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the measure of each exterior angle of the regular polygon shown here? Round to the nearest hundreths.
51.43
128.58
128.57
51.44
Answer explanation
First, find the sum of all interior angles using (n-2) x 180.
Then, divide the total number of degrees by the number of vertices (angles) in the regular polygon.
You can also do this all in one step by using the formula below on your calculator:
[(n-2) x 180]/n
Please note: the number of sides and vertices is the same in a regular polygon
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the sum of the exterior angles of an octagon?
180
360
1080
540
Answer explanation
RULE: The sum of exterior angles in any of the polygon is 360 degrees.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The sum of the measures of the interior angles is 1260°. How many sides does the polygon have?
7
8
9
6
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the measure of each interior angle of a regular polygon is 135°. How many sides does the polygon have?
6
7
8
9
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