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09-03-2017
Mathematics

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The height of a triangle is 5 m less than its base. The area of the triangle is 42 m². What is the length of the base? Enter your answer in the box.

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09-03-2017

(1/2)bh =A
(1/2) 7 x 12 = 42
(1/2) 84 = 42
42 = 42

H = 7
B= 12

Hope this helps :)

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