Answer:
Step-by-step explanation:
we know that
The perimeter of a square is equal to
where
a is the length side of the square
in this problem we have
convert to an improper fraction
Find the perimeter of the square
Remember to adds two extra inches for each corner
so
The wood needed is
convert to mixed number
(-10)²= -10 × -10 = 100
When any number is squared whether it is positive or negative, the result will always be positive:
Anything squared means the number multiplied by itself:
So:
b
cause