The perimeter of the quadrilateral is 37 cm. Which equation could be used to find the length of the missing side?
A.
x
+
12
=
37
−
11
B.
x
+
11
+
12
=
37
C.
x
+
21
÷
8
=
37
D.
x
+
31
=
37
2 answers
B. x + 11 + 12 = 37
S
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