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- Anonymous1 month ago
A triangle has the angle sum of 180°. So to find out the third angle of the triangle, subtract 35 and 65 from 180.

To find x°, you'll have to subtract the third angle of the triangle from 180°. That's because the triangle's third angle and angle x together create a half turn (you can see this because the triangle's third angle and x are both next to each other above a straight line). A whole turn is 360°, therefore a half turn is 180°.

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- InLv 71 month ago
C. 80` The sum of all angles should equal 180`.

- Born YesterdayLv 71 month agoReport
Review your answer. 80 is the compliment of 100 (d).

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