1 Answer

CCCC · Answer 1 · 2021-12-30T07:18:20+0000

Answer:

The value of x is 1

Explanation:

The figure FIHG is a square

we know that

The perimeter of a square is equal to

P=4b

where

b is the length side of the square

we have that

$P=100\ cm$

$b=FG=(5x+20)\ cm$

substitute

100=4(5x+20)

solve for x

$100=20x+80\\20x=100-80\\20x=20\\x=1$

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