Question

A rectangular area has dimensions 432 feet by 345 feet. Using front-end estimation on the dimensions, what is an estimate of the amount of fencing required to enclose the rectangular area? A. 1200 ft. B. 1300 ft. C. 1400 ft. D. 1600 ft.

Answer 1

Answer:

Option C. 1400 ft

Step-by-step explanation:

we know that

In a Front End Estimation we keep only one number in the front and all the others became zeros

The perimeter of a rectangular area is equal to

$P=2(L+W)$

where

L is the length and W is the width

we have

$L=432\ ft\\W=345\ ft$

Applying front-end estimation

we have

$432\ ft=400\ ft\\345\ ft=300\ ft$

Find the perimeter

$P=2(400+300)$

$P=1,400\ ft$