Best Answer

180o. If the exterior angles are 120 the number of sides is 360/120 ie 3 so it's a triangle.

Q: What is the sum of the interior angles of a regular polygon if each exterior andle measures 120 degrees?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

1800 degrees

1440 degrees

1440 degrees

Interior angle = 120 degrees Exterior angle = 60 degrees

150 degrees.

Related questions

1800 degrees

1440 degrees

1440 degrees

Interior angle = 120 degrees Exterior angle = 60 degrees

Each exterior angle measures 20 degrees Each interior angle measures 160 degrees

540 degrees

30 degrees

150 degrees.

The interior angle of any regular polygon can be calculated using the formula 180 * (n - 2) / n, where n is the number of sides. In this case, since each exterior angle measures 72 degrees, the interior angle would be 180 - 72 = 108 degrees. So the measures of the interior angles in this regular polygon would be 108 degrees.

The sum of a regular polygon's interior angles is always equal to (n-2) * 180, where n is the number of sides in the polygon. Given that one exterior angle measures 40 degrees, we can find the interior angle by subtracting 40 from 180 degrees (since the exterior and interior angles are supplementary) to get 140 degrees. So, the sum of the interior angles of the regular polygon is 140 * n.

1440 degrees

540 degrees