Arectangle room is 2 times as long as it is wide, and its perimeter is 28 meters. find the dimension of the room. the length is meters and the width is meters

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

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