Apply Triangle Sum Theorem with Multiple Expressions

Описание: The interior angles of a triangle always add to 180 degrees.

Each angle in this lesson are either given or represented by an expression. Add each angle to equal 180. Then solve using DCMAM as needed.

Distribute
Combing Like Terms on each side of the =
Move the smaller variable to the other side of the =
Add/Subtract the number by the variable
Multiply/Divide the number next to the variable

Some questions ask for all 3 measures of the triangle. This means, whatever you solve the variable to be, must be substituted into the expression given for that particular angle.

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