Let's Solve :
Therefore, the correct answer is 12
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Answer:
40.5 ft2
Step-by-step explanation: First find the area of the square. Then do 3x3 because the is the triangle. Then divide 3x3 by 2 giving us 4.5 then mutiply by 9. Subtract 40.5 by 81. And thats you answer
If that is wrong try 45ft2
<span>A = (9x2 + 60x + 100) = (3x + 10)^2 or = (3x + 10)(3x + 10) ft^2
so the side length = </span>(3x + 10) feet
<span>when x = 7 feet.
P = 4 * </span>(3x + 10)
P = 12x + 40
P = 12(7) + 40
P = 84 + 40
P = 124 feet
The answer you want is going to be A.
Hope it helps.
Sorry we need a picture to help you