Question

the diagram shows a triangle.
what is the value of s?
s = \square^\circ

Explanation:

Step1: Recall triangle angle sum

The sum of angles in a triangle is \(180^\circ\).

Step2: Calculate the unknown angle

Let the angles be \(85^\circ\), \(38^\circ\), and \(s\). So, \(s = 180^\circ - 85^\circ - 38^\circ\).
First, \(85 + 38 = 123\). Then, \(180 - 123 = 57\).

Answer:

\(57\)