Question

Annie is making square shaped flags to cheer on the swim team. The length of the side of the square is given by the expression 2x + 4. Which of the following gives an expression for the perimeter of the square? 4x + 8 2x + 16 8x +16 4x + 16 If x has a value of 5, what is the perimeter of the square? The perimeter is units. If x has a value of 3, what is the area of the square? Show all of your steps. Previous

Answer 1

If the side of the square is 2x+4, then the perimeter is $P=4(2x+4)=8x+16$.

If x=5, then the perimeter is P=8*5+16=56

If x=3, then the side of the square is 2*3+4=10 and the area is $A=10*10=100$