540.
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False, the sum of the angles in a parallelogram is 360 degrees.
The sum of the angles (in degrees) for an n-sided polygon is given by the formula sum = 180 (n-2) For a triangle, n=3 and the sum is 180 (3-2) = 180 For a quadrilateral, n=4 and the sum is 180 (4-2) = 360
No. Only the sum of the measures of the angles of a triangle equal to 180 degrees; in the case of a quadrilateral it amounts to 360 degrees.
The sum of the interior angles of a polygon with n sides is 180(n-2). Setting this equal to 5400 yields 180n - 360 = 5400 or 180 n = 5400 + 360 = 5760 or n = 5760/180 = 32 sides.
It has (7380+360)/180 = 43 sides