The perimeter of a rectangle is 28 cm. The length is 10 cm longer than the width. Find the dimensions
+2094 x=length
y=width
2x+2y=28
x=y+10
Elimination method
2x+2y=28
2x-2y=20
4y=8
y=2
Length: 12cm, Width: 2cm
+36916 Similarly :
w = width
l = length = 10+w perimeter = 28
2w + 2(10+w) = 28
4w = 8 so w = 2 cm then l = 12 cm
