Multiple Choice
What is the sum of the interior angle measures of a 20-gon?
(1 point)
Responses
360o
360 o
3,240o
3,240 o
3,600o
3,600 o
162o
3600o
To find the sum of the interior angle measures of any polygon, you can use the formula:
Sum = (n - 2) * 180 degrees
Where n is the number of sides or vertices of the polygon.
In this case, we have a 20-gon, so we substitute n = 20 into the formula:
Sum = (20 - 2) * 180 degrees
Sum = 18 * 180 degrees
Sum = 3,240 degrees
Therefore, the correct answer is:
3,240o
To find the sum of the interior angle measures of a polygon, you can use the formula:
Sum = (n - 2) * 180 degrees
Where "n" represents the number of sides (or vertices) of the polygon.
In this case, the polygon is a 20-gon. So, we substitute n = 20 into the formula:
Sum = (20 - 2) * 180 degrees
Sum = 18 * 180 degrees
Sum = 3,240 degrees
Therefore, the correct answer is:
3,240o