Question

which equation can you use to find the value of x?
$x + 30+105 = 180$
$x = 105 - 30$
$x + 30+105 = 360$
$x = 105 + 30$

Explanation:

Step1: Recall angle - sum property of a triangle

The sum of the interior angles of a triangle is 180 degrees.

Step2: Identify the angles in the triangle

The angles of the given triangle are \(x\), 30 degrees, and 105 degrees.

Step3: Set up the equation

Based on the angle - sum property, we have \(x + 30+105 = 180\).

Answer:

\(x + 30 + 105 = 180\)