What is the formula to calculate the sum of interior angles of a polygon?

Polygons and Quadrilaterals Assessment

Interactive Video
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Mathematics
•
9th - 12th Grade
•
Hard

Lucas Foster
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sum = (Number of sides - 2) x 180
Sum = (Number of sides - 2) x 90
Sum = (Number of sides + 2) x 180
Sum = Number of sides x 180
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many degrees are the sum of the interior angles of a pentagon?
720 degrees
180 degrees
360 degrees
540 degrees
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the measure of one interior angle of a regular pentagon?
120 degrees
150 degrees
108 degrees
135 degrees
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a quadrilateral, if two angles are known, how do you find the other two?
Multiply the known angles
Subtract from 180 degrees
Use the sum of quadrilateral angles equals 360 degrees
None of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What property do opposite angles in a parallelogram exhibit?
They are both acute
They are congruent
They are supplementary
They are complementary
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a parallelogram, how are the diagonals related?
They are parallel
They are congruent
They are perpendicular
They bisect each other
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sum of the exterior angles of any polygon?
180 degrees
360 degrees
None of the above
The number of sides times 180
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