
Anonymous A. answered 11/24/19
Dear student. You're struggling in study? I will be by your side!
*Let h = the height of the triangle (h>0), b = the base of the triangle (b>0)
*According to the problem: h = b + 4
- Area = 1/2 *h*b
336 = 1/2 * (b+4) *b
672 = (b+4)*b
672 = b2+4b
0 = b2+4b-672
0 = (b-24)*(b+28)
b = 24 or b = -28 (cancel -28, b/c b>0)
- h = b+4 = 24+4 = 28
Therefore, the triangle's base is 24ft, and its height is 28ft.