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the sum of the measures of the interior angles of any triangle equals 180*. the two base angles in an isoceles triangle are equal to each other so if you have the measure of one of the two base angles, then you know the other. so for example, if one base angle equals 36, then the equation to find the missing angles would be

36+36+x=180 when solved x=108, which would be the non base angle

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Q: How do you find the measurement of the third angle on an isosceles triangle?
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