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Mathematics 7 Online
OpenStudy (anonymous):

In a pentagon the measures of the 5 angles are in the ratio 1:2:3:4:5 respectively. find the measures of the five interior angles of the pentagon

jimthompson5910 (jim_thompson5910):

Hint: Let x be the smallest angle The other 4 remaining angles would then be 2x, 3x, 4x, 5x They must add to 180(5-2) = 540 degrees, which means x+2x+3x+4x+5x = 540

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