Answer:
Number of Significant Figures: 4
The Significant Figures are 1 0 7 6
X square + 1x + 4x + 4
X(x+1)+4(x+1)
(X+1)(x+4)
120 inches.
This is because to find the scale factor, you have to take the square root of the area scale. This will give you 30-1 ratio. Then multiply the 4 by that number.
