169k views
0 votes
the perimeter of a rectangular field is 312 yards. if the length of the field is 83 yards,what is the width

User Peetonn
by
3.8k points

1 Answer

0 votes

Solution:

Consider the following diagram of the rectangular field:

The perimeter P of a polygon is the sum of its sides, thus we can express the perimeter of the given rectangular field as:


P\text{ = 2W + 2L }

where P = 312 yards, L = 83 yards, and L is unknown. Then, replacing the given data into the previous equation, we get:


312\text{ = 2(W) + 2(83)}

this is equivalent to:


312\text{ = 2(W) + }166

solving for 2W, we get:


2W\text{ = 312 - 166 = 146}

solving for W, we get:


W\text{ = }(146)/(2)=\text{ 73}

we can conclude that the correct answer is:

The width of the rectangular field is 73 yards.

the perimeter of a rectangular field is 312 yards. if the length of the field is 83 yards-example-1
User Mandaputtra
by
3.9k points