geometry
posted by chelsea on .
The ratio of the angle measures of a pentagon is 4:5:3:8:7. What is the measure of the smallest angle?

The sum of the interior angles of a pentagon is 180(52) = 540ยบ
so
4x + 5x + 3x + 8x + 7x = 540
solve for x and sub into 3x 
60

20

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