m<7 = 135 degree
What does congruence mean in math?
congruence, in mathematics, the term employed in several senses, each connoting harmonious relation, or agreement, and correspondence. so 2 triangles are congruent if 2 sides and their included angle in the 1 are = to 2 sides and their included angle in the other.
Angles one and three are vertical angles, so they are congruent.
Since angle one measures 135 degree, angle three also measures 135 degree.
Angles 3 or 7 are corresponding angles to the parallel lines cut by the transversal, so they are congruent.
Since angle 3 measures 135 deg, angle 7 also measures 135 deg.
Answer: m<7 = 135 degree
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