Yahoo Answers: Answers and Comments for A triangle has a base area of (2 x) cm and a height of (2x+6) cm.? [Mathematics]
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From Sally
enUS
Wed, 17 Jul 2019 19:04:15 +0000
3
Yahoo Answers: Answers and Comments for A triangle has a base area of (2 x) cm and a height of (2x+6) cm.? [Mathematics]
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From ted s: Hmmmm....base area in cm.....what does that me...
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https://answers.yahoo.com/question/index?qid=20190717190415AAxV3sC
Wed, 17 Jul 2019 19:46:28 +0000
Hmmmm....base area in cm.....what does that mean ???

From lenpol7: A = (0.5)(2x)(2x + 6)
2A = 4x + 12  2x^2  ...
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https://answers.yahoo.com/question/index?qid=20190717190415AAxV3sC
Wed, 17 Jul 2019 19:24:29 +0000
A = (0.5)(2x)(2x + 6)
2A = 4x + 12  2x^2  6x
2A = 2x^2  2x + 12
A = x^2  x + 6
At Max (Area)
dA/dx = 2x  2 = 0
2x = 2
x = 1
Hence
A = (0.5)(2   1)(2(1) + 6)
A = ).5)(3)(4)
A = (0.5)(12)
A = 6 (Max Area) at x = 1