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Quadrilateral $A B C D$ has a perimeter of $34 \mathrm{ft}$. If side $A D$ is $12 \mathrm{ft}$, how long is side $C D$ ?

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Answer

$\boxed{Insufficient \ information}$

Steps

Step 1 ：Given: Perimeter of Quadrilateral ABCD = 34 ft, AD = 12 ft

Step 2 ：We need to find the length of side CD.

Step 3 ：$Perimeter = AB + BC + CD + AD$

Step 4 ：$34 = AB + BC + CD + 12$

Step 5 ：$22 = AB + BC + CD$

Step 6 ：Insufficient information to determine the length of side CD.

Step 7 ：$\boxed{Insufficient \ information}$