Perimeter
A rectangle is a perimeter of 78 feet what is the length and width
- Let width of a rectangle = w meters
- Length = 2w meters
Perimeter of a rectangle = 2( length + width )
[tex]\tt 78 = 2(2w+w) \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:\\ \tt 78 =6w \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:\: \: \: \: \: \: \: \: \: \: \\ \tt width = 78/6 = \green{13 \: meters}\\ \tt length= 2w= \green{26 \: meters}[/tex]
To Check
Perimeter of a rectangle [tex] \tt P = 2(l + w)[/tex]
- [tex] \tt P = 2(l + w)[/tex]
- [tex] \tt P = 2(23m + 13m)[/tex]
- [tex] \tt P = 2(39m)[/tex]
- [tex] \tt P = \green{78m}[/tex]
Therefore, the length is 23m and the width is 13m
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