👉 Learn how to find the value of an unknown variable in the expressions representing the values of angles given the relationship between the angles. When given expressions representing the values of ...
👉 Learn how to solve for an unknown variable using parallel lines and transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such ...
Angles that add together to make a straight line are called supplementary angles. If you know one supplementary angle you can subtract it from 180° to find a missing angle.
\(x\) is 50°. Corresponding angles are equal. \(y\) is 180° - 50° = 130°. Angles on a straight line add up to 180°.
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