Question

What is the least number of acute angles that a triangle can have?

Answer 1

Finding the least number of acute angles that a triangle can have:

The least number of acute angles that a triangle can have is $2$

Because if a triangle has more than one obtuse angle or right angle the sum of all angles will be greater than $180°$, which is not possible in a triangle.

Hence, the least number of acute angles that a triangle can have is $2$.