Question

what is the value of c?
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Explanation:

Step1: Apply exterior angle theorem

The exterior angle theorem states that an exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles. So, \(c + 38^{\circ}=c+(c - 20^{\circ})\).

Step2: Simplify the equation

$$
LATEXBLOCK0
$$

Answer:

\(58\)