Question

how many acute angles are in triangle abc? classify triangles - introduct - learn d number of acute angles:

Explanation:

Step1: Recall the definition of an acute angle

An acute angle is an angle that measures less than \(90^{\circ}\).

Step2: Analyze triangle \(ABC\)

In triangle \(ABC\), angle \(B\) is a right angle (\(90^{\circ}\)). The sum of angles in a triangle is \(180^{\circ}\). So the sum of the other two angles (\(\angle A\) and \(\angle C\)) is \(180 - 90=90^{\circ}\). Since their sum is \(90^{\circ}\), each of them must be less than \(90^{\circ}\). So there are 2 acute angles in triangle \(ABC\).

Answer:

2