# geometry

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• geometry -

Sum of measures of interior angles of a polygon of n sides = (n - 2)*180 deg.

parallelogram = 4 sides
so, n = 4
(4 - 2)*180
2*180 = 360 deg in a parallelogram

• geometry -

• geometry -

No, you cannot have 4 acute angles
since "acute" means less than 90°

4 x (something less than 90) < 360

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