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05-02-2017
Mathematics

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Two angles in a triangle add up to 138 degrees what is the size of the 3rd angle

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CornyKenneth CornyKenneth

05-02-2017

The measurement of the second angle is 42°. All of the angles of a triangle add up to a total of 180°. If two angles add up to 138°. Then the last angle has to be 42° (180-138).

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