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Mathematics 13 Online
OpenStudy (lifeisadangerousgame):

Help with perimeter? c:

OpenStudy (lifeisadangerousgame):

How do I calculate the perimeter of these three?

OpenStudy (phi):

For the horizontal and vertical lines, count how long they are for the slanted lines, notice you can form a right triangle with legs of length 2 (wide) and 6 (height) you can use pythagoras to find the length of the slanted side (it is the hypotenuse)

OpenStudy (lifeisadangerousgame):

I don't really understand :/

OpenStudy (phi):

what exactly is the question ?

OpenStudy (lifeisadangerousgame):

"Calculate the perimeter of each room and the cost of baseboards or wallpaper boarders."

OpenStudy (phi):

You know the perimeter is the distance around the figure. can you figure out the lengths of 3 of the 4 sides of the kitchen ?

OpenStudy (phi):

by counting the squares

OpenStudy (lifeisadangerousgame):

11 is the length, and the with is 6

OpenStudy (phi):

what about the bottom edge ?

OpenStudy (lifeisadangerousgame):

that's 9

OpenStudy (phi):

so the perimeter is 11+6 + 9 + x the x is the length of the slanted side on the right.

OpenStudy (phi):

you can make a triangle. start at the top and go straight down then go over 2 squares |dw:1368062559018:dw|

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