Answer:
The error is in the Step 3
Explanation:
we know that
The area of a rectangle is equal to
A=bh
where
b is the base of rectangle
h is the height of rectangle
so
The Step 1 calculating the Base is correct
The Step 2 calculating the Height is correct
The Step 3 calculating the area of rectangle is not correct
because
A=(8)(7)=56 units² instead of 49 units²