Question

if in a triangle each angle is less than 90 degree then the is called​

Answer 1

If each angle less than 90° then it is called Acute - angled triangle

Answer 2

An acute triangle has three angles that each measure less than 90 degrees. An equilateral triangle is a triangle in which all three sides are the same length. An obtuse triangle is a triangle with one angle that is greater than 90 degrees