Answer:
The answer is 4.5 units.
Step-by-step explanation:
The given figure is called a prismoid where the end faces have the same number of sides but these are not equal.
So, to find the length of IJ, we will add up the lengths of DA and FG and divide that by 2.
IJ = [tex]\frac{6+3}{2}[/tex] = [tex]\frac{9}{2}[/tex] = 4.5 units.
Hence, the length of IJ is option A =4.5 units.
