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Q: What is the sum of the measures of the interior of a regular polygon if each exterior angle measures 90?

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Hint: in a regular polygon interior plus exterior = 180o, always.

1260

1440 degrees

1440 degrees

1800 degrees

360

If exterior angles are 120 then interior angles must be 60 so you have an equilateral triangle

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.

1440 degrees

540 degrees

Interior angle = 120 degrees Exterior angle = 60 degrees

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