Question 6 of 7
A quadrilateral is shown with a perimeter of 37 cm and sides labeled 12 cm, 11 cm, 8 cm, and x cm.
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