Answer:
21.12
Step-by-step explanation:
To solve this, it's best to use Cartesian planes. So we draw it in the Cartesian planes. From the question, we have {0, 19} and also {1.8, 0}.
If x = -1.8 and x = +1.8, then
1.8 = (19 - 0) / (0 - x)
1.8 = 19 / -x
x = -19 / 1.8
x = -10.56
Since we're having it in 2 quadrants then, we have 10.56 + 10.56 = 21.12 to be our width of the cottage
