Complete the Length x Width table (The confusing part is that the last rectangle is technically a square so...)

[LiseyDot05]

Hi folks. I hope everyone is well.
Can I just have a wee clarification that my son completed this table correctly?
The confusing part for him is that the last rectangle is technically a square so he's worried he has done it all wrong.

 

[lev888]

Hi folks. I hope everyone is well.
Can I just have a wee clarification that my son completed this table correctly?
The confusing part for him is that the last rectangle is technically a square so he's worried he has done it all wrong.

Didn't check the work, but every square is a rectangle, so that part is not an issue.

 

[Dr.Peterson]

Hi folks. I hope everyone is well.
Can I just have a wee clarification that my son completed this table correctly?
The confusing part for him is that the last rectangle is technically a square so he's worried he has done it all wrong.

Yes, everything looks good. And a square is a special kind of rectangle, so everything that is true of a rectangle (including how to find its perimeters and area) is still true. So he's done nothing wrong at all.

 

[LiseyDot05]

Thank you, everyone. x

 

[Steven G]

I like this exercise very much. I always use L+W for half of the perimeter
In other words if the perimeter is 100, I would write L+W = 50 and never 2L+2W = 100.

 

[khansaheb]

and never 2L+2W = 100.

never is a very lo_ooo_ng time.

 

[Steven G]

never is a very lo_ooo_ng time.

Yeah, I thought about that when I wrote it. Surely if someone asked me for the formula for the perimeter of a rectangle, then ...