Answer:
Length = 5 units, Area = 51 unit squared
Explanation:
For the length of the midsection (I think this is what you're talking about):
Method 1.
Draw the graph and count the units across for the length.
Method 2.
The lowest y coordinates are the 0 from point A and the 0 from point B: this means that the line between point A and B is the bottom line of the trapezoid.
The highest y coordinates are the 6 from point C and the 6 from point D: this means that the line between point C and D is the top line of the trapezoid (parallel to line AB).
Since the length of the midsection is essentially the shorter line of the two parallel lines, it is the length between point C and point D.
(10, 6) - (5, 6) = 5, so the length of the midsection is 5 units.
For the area:
Step 1. Add the lengths of the pair of parallel lines.
5 units + 12 units = 17 units
Step 2. Divide the answer to step 1 by 2.
17 units รท 2 = 8.5 units
Step 3. Multiply the answer to step 2 by the height between the two parallel lines.
6.5 units x 6 units = 51 units squared
Hopefully this was what you were looking for!
Bluey :)