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Find the perimeters of these figures.

 

 May 10, 2020
 #2
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Left-hand picture -- it may seem that you haven't been given enough information, but you don't need the other dimensions.

Going from the top-left-hand corner to the bottom-right-hand corner, you will go a distance of 12 + 10  =  22.

And, it will be 22 no matter which way you go. The entire trip will be 22 + 22  =  44.

 

For the right-hand picture --  if there were no indentation of 2 in the middle, you would go (9 + 11) x 2  =  40.

But you will be going an extra 2 up and 2 down, for a total of 44.

 

I tink that a good way of looking at this would be to pretend that you are walking city blocks.

 May 11, 2020
 #3
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Perimeters are identical     44    and     44  smiley

 May 11, 2020

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