how do you have a rectangle with a perimeter of 12 units and an area of 9 square unit

[lonewolf]

the question my son got from school is

draw a rectangle that has a perimeter of 12 units and an area of 9 square units?


he was given a grid to draw on but I don't know how to draw it or to teach him to do it someone please help.I know that a square with 9 blocks of area has a perimeter of 12, but i come up with a perimeter of 13 if I do a rectangle of 2rows of 4 and a 1/2.

 

[Mrspi]

the question my son got from school is

draw a rectangle that has a perimeter of 12 units and an area of 9 square units?


he was given a grid to draw on but I don't know how to draw it or to teach him to do it someone please help.I know that a square with 9 blocks of area has a perimeter of 12, but i come up with a perimeter of 13 if I do a rectangle of 2rows of 4 and a 1/2.

A square is also a rectangle....so if you draw a square that is 3 units on a side, it will have a perimeter of 3+3+3+3, or 12, and an area of 3*3 square units, or 9 square units.

It seems to me that you have solved your problem!

 

[lonewolf]

my son is in the 4th grade and that's a square thanks