Answer:
Area=

Explanation:
area=length times width
squares have the same side length, or length=width
in this problem, the side length of the square is

therefore, length=width=

the length is increased by 11 to make a rectangle
therefore, the new length is

the width stays the same, it is still

therefore, the area of the rectangle is length X width=(a+11)*a
Area=(a+11)(a)
use distributive property (
)
Area=(a)(a)+(11)(a)
Area=
