Right angle - angle whose measurement is equal to 90 degree., Acute angle - angle whose measurement is between 0 degree to 90 degree., Straight angle - angle whose measurement is equal to 180 degree., Obtuse angle - whose measurement is between 90 degree to180 degree., Zero angle - angle whose measurement is equal to 0 degree., Angle - two rays with the same end point., Triangle - there are three angles in this closed figure., Rectangle - there are four angles in this closed figure., Arms - the two rays joining to form an angle., 360 degree - the sum of the interior angles of a rectangle.,

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