Perimeter formula for a rectangle:
2w+2L=p, where:
w = width
L = length
a = perimeter.
We are giving the length: 24. We need to find the width.
However, don't panic, since we are also given the perimeter: 68.
Just plug in numbers and leave "w" as the only variable.
2w + 2(24) = 68
Simplify.
2w+48=68
2w=20
w=10
The patio is 10 meters wide.
