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.
Classification of Triangles According to angles If one angle of a triangle is a right angle (90Â°), then it is called a Right triangle. Note that the other two angles are acuâ¦te. If all the angles of a triangle are acute (less than 90Â°), then it is called an acute angled triangle. If one angle of a triangle is obtuse (greater than 90Â°), then it is called an obtuse triangle. Note that the other two angles are acute. According to sides:If any two sides of a triangle are equal, then it is called an Isosceles Triangle. In ABC, AB = AC ABC is isosceles. If all the three sides of a triangle are equal, then it is an Equilateral Triangle. In ABC, AB = BC = CA ABC is equilateral.