Question

Difficult one. Need help with work shown.

Answer 1

see explanation

Explanation:

the perimeter (P) of a rectangle is calculated as

P = 2(length + width)

= 2(160 + 50)

= 2 × 210

= 420 ft ← amount of fencing needed

the area (A) of a rectangle is calculated as

A = length × width = 160 × 50 = 8000 ft²

Answer 2

the length of the fence = 420 ft

The total area = 8000 ft²

Explanation:

the fence has the same length as the perimeter of the rectangle

then

the length of the fence = 2×(160+50) = 420 ft

………………………………………………………………

The total area enclosed by the fencing = the area of the rectangle

Then

The total area = 160×50 = 8000 ft²