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02-04-2018
Mathematics

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An isosceles triangle has base angles measuring 25 degrees each. What is the measure of the vertex angle?

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TheAakash TheAakash

02-04-2018

A triangle's sum must add to 180 degrees. If two of the angles, summed, equal 50 degrees, then the vertex angle must equal 130 degrees. So, the vertex angle equals 130 degrees.

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