Question is in the picture<3

irdk

Step-by-step explanation:

if the perimeter of one is 40, then the lengths can be evenly divided among the four sides.

two of the four sides of each rectangle making up the perimeter are showing, meaning that half of each rectangle is to be accounted for.

so 20 cm for each rectangle

so the perimeter of ABCD should be 80cm^2

the solution is h=10 because you add 9 to each side of the equation.

x=6 and x=3

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