SSARS 21 is effective for engagements performed for periods ending on or after. December 15, 2015. Early implementation is allowed. So, basically practitioners. must implement it for calendar year end 2015 (December 31, 2015) engagements, but may choose to implement it earlier.
acute triangle, acute-angled triangle-a triangle whose interior angles are all acute. equiangular triangle, equilateral triangle-a three-sided regular polygon. isosceles triangle-a triangle with two equal sides. oblique triangle-a triangle that contains no right angle.
An acute angle is an angle with a measurement between 0Â° and 90Â°, or with less than 90Â° radians. It's the smallest of six different types of angles. There's an easy way to remember that an acute angle is small: think of it as a cute angle, perhaps visualizing a cute child playing an acute angle in a play about geometry.