Answer:
B. 9 inches by 9 inches
Step-by-step explanation:
he formula for the area of a square is length x width
For a square the length and the width are same therefore it is
length x length = (length)² (let’s call this first equation)
also (x + 2 )²= 121 (let’s call this second equation)
To form an equation for the cropped picture from the original picture
Length = (cut off length + new length) (third equation)
Length = ( 2 + x) fourth equation
assuming the new lenght is x
Since 2 is the cut off length from each sides
Lets substitute first equation into second equation then we will have
Lenght² = 121
Length = √121
Length = 11
Substitute into fourth equation
Length = 11 = (x+2)
X+2 =11
X= 11 - 2
X=9
