Final answer:
To estimate the distance around Helen's rectangular lot with dimensions of 14 miles by 10 miles, calculate the perimeter using the formula P = 2(length + width), resulting in 48 miles.
Step-by-step explanation:
The question asks us to estimate the distance around Helen's rectangular lot that is 14 miles by 10 miles. To find the distance around the lot, which is the perimeter, we simply add up the lengths of all four sides. Since a rectangle has opposite sides of equal length, the formula for the perimeter (P) of a rectangle is P = 2(length + width). Using Helen's lot measurements, we have:
P = 2(14 miles + 10 miles)
P = 2(24 miles)
P = 48 miles
Therefore, the estimated distance around Helen's lot is 48 miles.