Asked by Kaylee
The base of a triangle is 10 cm longer than the height. Determine the height of the triangle if its area is 48 cm^2.
-I just plugged in number and got 6cm for the height and 16cm for the base. But I need to show work and I cant remember how to solve this.
-I just plugged in number and got 6cm for the height and 16cm for the base. But I need to show work and I cant remember how to solve this.
Answers
Answered by
drwls
The height h is b - 10
(1/2) b (b-10) = 48
b^2 -10b = 96
(b-16)*(b+6) = 0
b = 16. h = b-10 = 6
The other root (b = -6) makes no sense.
(1/2) b (b-10) = 48
b^2 -10b = 96
(b-16)*(b+6) = 0
b = 16. h = b-10 = 6
The other root (b = -6) makes no sense.
Answered by
tchrwill
The triangle area is A = bh/2 where b = the base and h = the height.
Therefore, A = (h + 6)h/2 = 24. I imagine you can take it from here.
Therefore, A = (h + 6)h/2 = 24. I imagine you can take it from here.
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