Question

which angle in triangle abc is a right angle? angle c angle a angle b

Explanation:

Step1: Recall the definition of a right - angle

A right - angle is an angle of \(90^{\circ}\).

Step2: Analyze the triangle

In a right - triangle, the right - angle is the angle that forms a perfect 'L' - shape. Looking at triangle \(ABC\), angle \(B\) forms the 'L' - shape (the corner where the two shorter sides of the right - triangle meet perpendicularly).

Answer:

angle B