Question

now solve the equation for ( mangle4 + mangle5 + mangle6 ).
( mangle4 + mangle5 + mangle6 = )
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Explanation:

Step1: Recall triangle angle sum

The sum of interior angles of a triangle is \(180^\circ\). Angles \(\angle4\), \(\angle5\), \(\angle6\) are the interior angles of a triangle.

Step2: Apply the theorem

By the triangle angle - sum theorem, \(m\angle4 + m\angle5 + m\angle6=180\).

Answer:

\(180\)