Answer:
1. What is the value of x?
Solve for x.
3x = x + 3
3x = 2(x + 3)
3x = 2x + 6
3x - 2x = 6
x = 6
2. What is the length of segment IJ?
Substitute 6 for x.
IJ = x + 3
IJ = 6 + 3
IJ = 9
1. Find the measure of DG.
The median of a trapezoid is half the sum of the lengths of the bases.
Therefore..
8 + 20 = 28
28/2 = 14
DG = 14
