Answer:
10.5
Explanation:
yes
width = x
length = x+ 3
perimeter = 2(l+b)
36= 2× (x + x+3)
36÷2 = 2x + 3
18 = 2x + 3
18 - 3 = 2x
15=2x
x =15÷2 =7.5
x=7.5
x + 3 = 10.5
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