To find this answer, begin making
sure you understand the problem and what you need
to find. You are asked to find the number of feet
of fence the rancher will need to build his new cow
pen. You are asked to find the perimeter, the distance
around the cow pen for which the fence will go around.
 To find the perimeter, you need to look at the information
you are given. The length is 85.3 feet and the width
is 38.6 feet. Here is where you need to remember
that with a rectangle there are two sides that represent
the length and two sides that represent the width.
A plan to solve this problem may include drawing
a simple rectangle to represent the cow pen and label
the sides to see just what you need to add to find
the perimeter of the pen.
If we estimate the possible answer you could round
the lengths to 80 ft, 80 ft, 40 ft, and 40 ft and
them up. The perimeter should be close or around
240 feet. To
solve this problem, you need to find the perimeter
of the rectangle with the four sides measuring 85.3
ft, 85.3 ft, 38.6 ft, and 38.6 ft.
85.3 + 85.3 + 38.6 + 38.6 = 247.8 ft
When you look over your choices, 247.8 ft is one
of them. Your estimate was around 240 ft, so we can
be pretty safe with our results.
The final answer is letter C. |
A
rancher is building a fence around his new cow pen.
The cow pen is rectangular in shape with a length
of 85.3 feet and a width of 38.6 feet.