How do the areas of triangle abc and def compare?
cde15
the area of aabc is 1 square unit less than the area of
adef
the area of aabc is equal to the area of a def
the area of aabc is 1 square unit greater than the area
of a def
the area of aabc is 2 square units greater than the
area of a def
a
3
4
5
6
7
x