Question

Here are the answer
-2
-4
-10
-8

Answer 1

8

Explanation:

Sum of length on bottom side: 3 + 1 = 4

Sum of lengths of top side: x

Larger length on bottom side: 3

Larger length on top side: 6

Since the two lines are cut by three parallel lines, the segment cut off are of proportional lengths.

4/x = 3/6

4/x = 1/2

x = 8