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.
Isosceles triangle: a triangle with at least two. sides congruent. Scalene triangle: a triangle with no two sides. congruent. Another way to classify triangles is according to their angles. A triangle with three acute angles. can be classified as an acute triangle. A triangle with one obtuse angle can be classified as obtuse triangle.