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Answer:
Length = 30
Height = 10
Step-by-step explanation:
Formula for the area = height * length. We know that the height of the wall is 1/3 of its length. This gives us another formula which is
Now substitute this into the formula, while knowing that the area is 300.
So we have 300 =
Solving for l gives us 30 and then substituting it back into the equation
, will give us that the height is 10.
Hope this helps