Answer:
maybe y= 9 because side A B is 10 and side C D is almost the same just sleep slightly shorter.
Answer:
Length times width
Step-by-step explanation:
l*w
<h3>

</h3><h3>

</h3>
Total area = 12 + 18 = 30cm²
Answer:
78
Step-by-step explanation:
add all the numbers to get 78
4/6=0.6666666667
0.6666666667×39=26 millimeters