Question

what is the value of m?

Explanation:

Step1: Use the property of straight angle

The sum of angles on a straight line is \(180^{\circ}\). Let's assume the unknown angle \(m\), \(42^{\circ}\) and \(69^{\circ}\) are related as \(m + 42^{\circ}+69^{\circ}=180^{\circ}\) (because they form a straight - line angle).

Step2: Solve for \(m\)

$$
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$$

Answer:

\(69\)