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The perimeter of a rectangular pool is 348 m.

If the width of the pool is 78 m, what is its length?

2 Answers

5 votes

Answer:

The length of the rectangle is
96 \text{m}

Explanation:

The perimeter of a rectangle is calculated by
P=2(l+w) where
l represents the length and
w represents the width of the rectangle.

The perimeter of a rectangular pool is
348 \text{m}.


P=2(l+w)\\348=2(l+78)\\348=2l+156\\2l=348-156\\2l=192\\l=(192)/(2)\\l=96 \text{m}

User DimanNe
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6.3k points
2 votes
Perimeter=add all sides
Rectangle=4 sides
Given: width of pool=78m
Given: perimeter is 348m
Other side parallel will also be 78m
Unknown: lengths (2)
78x2=156m
348-156m=192m
Unknown lengths should add up to 192m.
Unknown lengths should be the same length because parallel sides on a rectangle equal each other.
192/2=96m.
The length of the pool is 96m.
User Jonathan Lebrun
by
7.4k points