Calculate the White Area: Rectangle Geometry with 2×4 and 5-Unit Dimensions

As we know that EFGD is a rectangle, we also know that DE is equal to 2 and DG is equal to 4

In a rectangle, each pair of opposite sides are equal and parallel, therefore:

$ED=FG=2$

$DG=EF=4$

Now we calculate the area of the orange rectangle EFGD by multiplying the length by the width:

$2\times4=8$

Now we calculate the total area of the white rectangle ABCD:

$AD=AE+ED=2+2=4$

$DC=DG+GC=4+5=9$

The area of the entire rectangle ABCD is:

$4\times9=36$

Now to find the area of the white part that is not covered by the area of the orange rectangle, we will subtract the area of the rectangle EFGD from the rectangle ABCD:

$36-8=28$