Polygon Sum Interior & Exterior Angles Review
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
Standards-aligned
Lydia Scott
Used 3+ times
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18 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What is the sum of the measures of the interior angles of an octagon?
Answer explanation
(8 - 2)*180 = 1080
2.
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1 min • 1 pt
What is the sum of the measures of the interior angles of a 25-gon?
Answer explanation
(25 - 2)*180 = 4140
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What is the measure of each interior angle of a regular hexagon?
Answer explanation
Sum of interior angles for a hexagon is 720.
To find one, you do sum/# of angles.
So,
720/6 = 120
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What is the measure of each interior angle of a regular 16-gon?
Answer explanation
Sum of interior angles for a 16-gon is 2520.
To find one, you do sum/# of angles.
So,
2520/16 = 157.5
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What is the sum of the measures of the exterior angles of a decagon?
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What is the measure of each exterior angle of a regular 30-gon?
Answer explanation
Sum of exterior/# of angles
Sum of exterior angles is always 360!
360/30 = 12
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
If the exterior angle of a regular polygon is 22.5o, how many sides does it have?
Answer explanation
Sum of exterior/exterior angle measure
360/22.5 = 16
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