Math Problem Statement
In the diagram below, start overline, A, B, end overline, \parallel, start overline, D, F, end overline, comma AB ∥ DF , m, angle, D, C, E, equals, 105, degreesm∠DCE=105 ∘ and m, angle, C, E, F, equals, 150, degrees, .m∠CEF=150 ∘ . Find m, angle, B, .m∠B.
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Parallel Lines
Angle Relationships
Triangles
Formulas
Sum of internal angles in a triangle = 180°
Corresponding angles theorem
Alternate interior angles theorem
Theorems
Corresponding Angles Postulate
Alternate Interior Angles Theorem
Sum of Interior Angles in a Triangle
Suitable Grade Level
Grades 9-11
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