Answer:
26
Step-by-step explanation:
In a trapezoid, the length of a mid-segment is average of the two bases.
In this case, the bases are 12 and 40, the average of which is (40 + 12)/2 = 52/2 = 26
Answer:
-------12--------------22------------
Step-by-step explanation:
= 12
= 10
10+12