Question

the figure shown is a triangle with three unknown angles. first, write an expression for the sum of the angle measures of the triangle. + - · ÷ m∠1 m∠2 m∠3

Explanation:

Step1: Recall the angle - sum property of a triangle

The sum of the interior angles of a triangle is the sum of its individual angle measures.

Step2: Write the expression

For a triangle with angles \(m\angle1\), \(m\angle2\), and \(m\angle3\), the sum of the angle measures is \(m\angle1 + m\angle2+m\angle3\).

Answer:

\(m\angle1 + m\angle2+m\angle3\)