Question

which of the following equations could be used to find the missing angle measure? 73 + 75 + 360 = x 73 + 75 + x = 360 73 + 75 + x = 180 73 + 75 + 180 = x

Explanation:

Step1: Recall the triangle angle - sum property

The sum of the interior angles of a triangle is \(180^{\circ}\).

Step2: Set up the equation

If the angles of the triangle are \(73^{\circ}\), \(75^{\circ}\), and \(x^{\circ}\), then \(73 + 75+x=180\).

Answer:

\(73 + 75+x = 180\) (the third option)