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Triangle Word Problem : Find the size of an angle.

A triangle has one angle twice the size of the first angle and another the size of the first angle plus 50. What size is the first angle?

Solution Preview

Let's call the three angles a, b, and c. We can then rewrite your problem as:


Since all triangles have a total of ...

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The size of an angle is found The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.