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irinazyrianova23
I think it’s the third one.
Formula for area of trapezoid is (b1+b2) divided by 2 then multiplied by height. So b1 + b2 is 9 + 12 which is 21. Then divide 21 by 2 you get 10.5. then multiply that by height, 10.5 x 6. The area is 63 feet squared.