Answer:
∠ GEF = 35°
Explanation:
∠ DEG and ∠ GEF are a linear pair and sum to 180° , that is
∠ DEG + ∠ GEF = 180°
145° + ∠ GEF = 180° ( subtract 145° from both sides )
∠ GEF = 35°
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given 2 points (x₁, y₁ ( and (x₂, y₂ )
then calculate the distance d between them using the distance formula
d =
