# Answer to Question #22349 in Geometry for Caleb

Question #22349

If i have a trapezoid and the top is 12 the bottom is 30 what is the middle line

Expert's answer

The middle line of a trapezoid is equal to the ariphmeticmean of the top and the bottom sides:

m = (t+b)/2 =(12+30)/2 = 21

m = (t+b)/2 =(12+30)/2 = 21

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