emhissam1 emhissam1

17-11-2017
Mathematics

contestada

a triangles height is 4dm less than the length of its base. the area is 6dm^2. find the length of the base and the height

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jorel1380 jorel1380

17-11-2017

Let the base be b. Then the height is b-4. So:
1/2(b)(b-4)=6
b²-4b-12=0
(b-6)(b+2)=0
b=6
b-4=2
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