Question

9 directions - create a triangle angle sum equation then solve for x: triangle angle sum equation = x = degrees

Explanation:

Step1: Recall angle - sum property

The sum of the interior angles of a triangle is 180°. So the triangle angle - sum equation for \(\triangle ABC\) is \(x + 37+57=180\).

Step2: Simplify the left - hand side

\(x+(37 + 57)=x + 94\). So the equation becomes \(x+94 = 180\).

Step3: Solve for \(x\)

Subtract 94 from both sides of the equation: \(x=180 - 94\).

Answer:

Triangle angle sum equation = \(x + 37+57=180\)
\(x = 86\) degrees