They are 15 and 45 units.
The average(mean) of the two bases. (8+12)/2=10
It is 5 inches.
The altitude of a trapezoid bisects the bases of the trapezoid.
Given the median and trapezoid MOPN, what is the value of x?
The average of the bases of a trapezoid is the median.
To find the median of a trapezoid, you would add the lengths of the two bases of the trapezoid and then divide by 2. This will give you the median, which is the segment connecting the midpoints of the two non-parallel sides of the trapezoid.
Oh, isn't that just a happy little math problem! If the median of an isosceles trapezoid is 5.5, then the sum of the bases is twice the length of the median. So, the bases could be 6 and 5, or 7 and 4, or 8 and 3, or any other pair of integers that add up to 11. Just remember, there are many happy little solutions to this problem!
sometimes
It is called the median.
Only if it is an isosceles trapezoid which has one line of symmetry.
50
A trapezoid does not have a median since from any vertex, there is no single opposite side.