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slava [35]
3 years ago
9

Find the unknown measure of the rectangle perimeter = 54 width =

Mathematics
1 answer:
valkas [14]3 years ago
8 0
So first u do 54=20+20+A+A a is a variable that we r using for unknown side 
than 40=40+2A 
14=2A
A=7 i hope u know what i am trying to explain if u have any question please tell me =)
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