What is the sum of the interior angle measures of a 20-gon?
(1 point)
A. 360 deg
B. 3,240°
C.3,600°
D. 162 deg
To find the sum of the interior angle measures of a polygon, we can use the formula:
Sum = (n-2) * 180°
where n is the number of sides of the polygon.
For a 20-gon, n = 20.
Substituting this value into the formula, we get:
Sum = (20-2) * 180°
Sum = 18 * 180°
Sum = 3,240°
Therefore, the sum of the interior angle measures of a 20-gon is 3,240°.
The correct answer is B. 3,240°.
To find the sum of the interior angles of any polygon, you can use the formula:
Sum of interior angles = (n-2) * 180°
where n is the number of sides of the polygon.
In this case, we have a 20-gon, so n = 20. Plugging this value into the formula:
Sum of interior angles = (20-2) * 180°
= 18 * 180°
= 3,240°
Therefore, the sum of the interior angle measures of a 20-gon is 3,240°.
The answer is B. 3,240°.
To find the sum of the interior angle measures of a polygon, you can use the formula:
Sum = (n - 2) * 180,
where n represents the number of sides or vertices of the polygon.
In this case, we have a 20-gon, which means n = 20.
Substituting this value into the formula, we get:
Sum = (20 - 2) * 180 = 18 * 180 = 3,240°.
Therefore, the correct answer is B. 3,240°.