Question

41 cm 40 cm 9 cm = 180cm
how please explain
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Answer 1

Step-by-step explanation:

41²=40²+9²=>the ∆ is right angled,so smallest altitude in a right angled ∆ is that on the hypotenuse as the hypotenuse is the longest side in any right angled ∆.Hence 41×x=40×9=>x=360/41=8.78 cm.Ans..