what is the sum of the interior angle measures of a 20-gon?
A. 360
B. 3240
C. 3600
D.162
To find the sum of the interior angle measures of a polygon, you can use the formula:
Sum of interior angles = (n-2) * 180 degrees
where n is the number of sides or vertices in the polygon.
In this case, the polygon is a 20-gon, so n = 20.
Sum of interior angles = (20-2) * 180 = 18 * 180 = 3240 degrees
Therefore, the answer is B. 3240.
To find the sum of the interior angle measures of a polygon, we can use the formula:
Sum of interior angles = (n - 2) × 180°
where "n" represents the number of sides or vertices of the polygon.
In this case, we have a 20-gon, so n = 20.
Substituting this into the formula:
Sum of interior angles = (20 - 2) × 180°
= 18 × 180°
= 3240°
Therefore, the sum of the interior angle measures of a 20-gon is 3240°.
The correct answer is B. 3240.
To find the sum of the interior angle measures of any polygon, you can use the formula:
Sum = (n - 2) * 180
where "n" is the number of sides of the polygon.
In this case, you want to find the sum of the interior angle measures of a 20-gon, so you would substitute "20" for "n" into the formula:
Sum = (20 - 2) * 180
= 18 * 180
= 3240
Therefore, the sum of the interior angle measures of a 20-gon is 3240.
Therefore, the correct answer is B.