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Angle Pairs

Understand complementary angles as angles whose sum is 90 degrees and supplementary angles as angles whose sum is 180 degrees.

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Progress
Progress
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Geometry Definitions and Introduction to Proof

Algebra and Vertical Angles
Teacher Contributed
In the diagram below, $$m\angle ACD = (7x -27)^\circ, \; m\angle ECB = (8x -44)^\circ$$. What is the value of $$x$$?
$$A$$
$$B$$
$$D$$
$$E$$
qid: 100094