Explanation
A triangle is called a right-angled triangle when it has an angle equal to 90 degrees. Otherwise, it will not be a right-angled triangle. **** all four sides are of equal length ( equilateral ), and all f our angle s are right angles. A triangle that has no equal sides and no equal angles is known as a Scalene Triangle while if two sides o f a triangle are of equal length , then it is called . Isosceles triangle Sh5-9-2023