what is the sum the interior anglesof a square ?, 360, 220, 180, 90, what is the mwasure of a right angle ?, 180, 60, 90, 40, what is the range of an obtuse angle in degrees ?, 140-200, 90-180, 180-360, 90-120, wich of the followings is not a prime number ?, 7, 19, 1, 47.

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