Question

In the given figure alongside if a+b+c=180° show that x=a+b​

Answer 1

We are aware that a+b+c=180° therefore we can assume that the figure shown is a triangle, Note that x+c=180° if both of these equations are true then we can create the equation x+c=a+b+c minus c on both sides, we are left with x=a+b

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