Question 848578
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Hi,
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a square has a <u>side {{{  highlight_green(x) }}}equal to the perimeter</u> of a rectangle with adjacent sides 4cm and 5cm
{{{P[R] = 2(4cm) + 2(5cm) = 18cm}}}
Question states***   x = 18cm
Area of this Square = (18cm)^2