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9 answers

(22+3)x(11+3)
=25x14
=350(this is the area of the whole thing)
350-(22x11)
=350-242
=108(this si the area of the side walk)

2007-03-08 15:37:55 · answer #1 · answered by you 2 · 0 0

The total area of the sidewalk and courtyard would be
(22 + 3 + 3) x (11 +3 +3)...........since the sidewalk is covering the whole courtyard on the outside, the length and width will increase by twice the width of the sidewalk
So that =
476 m^2

Now the are of the courtyard alone will be:
22 x 11
=242 m^2

SO the area of the sidewalk = 476 - 242
=234 m^2

2007-03-08 23:39:51 · answer #2 · answered by Southpaw 5 · 0 0

The inner perimeter of the sidewalk is 2 ( 22 + 11) = 66
66 * 3 meters is 198 square meters.

But this leaves off the four corners of the sidewalk, the 3 by 3 squares at each corner. So, you add 4 * 9 = 36 for a total of
234 square meters.

2007-03-08 23:41:48 · answer #3 · answered by xaviar_onasis 5 · 0 0

the perimeter of the courtyard is
2l+2w = 2(22)+2(11) = 66 m
add the corners:
4*3 =12 m
so for the sidewalk:
66 +12 = 78m
78*3 = 234 m^2 = area of sidewalk

2007-03-08 23:43:07 · answer #4 · answered by jaybee 4 · 0 0

the courtyard is 242 while the outside of the sidewalk is 350 your answer must be in meters squared so the the area of the sidewalk is 108. the courtyard taken out of the whole area.

2007-03-08 23:37:26 · answer #5 · answered by JustaLazyPotheaD420 1 · 0 0

Simple... you need to find the perimeter of the courtyard first. Then, you multiply that, which would be the length of the sidewalk, by the width of the sidewalk.

So, 11 + 11 +22 + 22 = 66

66 x 3 = 198

So the area of your sidewalk is 198m

2007-03-08 23:36:44 · answer #6 · answered by Anonymous · 0 0

1. draw a pic of the 22x11 rectangle
2. the sidewalk is 3 m wide so if wrapped around it would add 3 m to EACH side, so the 22x11 turns into 28x17
3. take the total area minus the area without the sidewalk to get ONLY the sidewalk area
4. 28x17=476 , 22x11=242
5. 476-242=234 meters squared!

2007-03-08 23:40:05 · answer #7 · answered by lilxchinkie 2 · 0 0

172 square meters is the area of the sidewalk.

2007-03-08 23:40:07 · answer #8 · answered by weng. 2 · 0 0

Whats the width of the sidewalk?

2007-03-08 23:34:27 · answer #9 · answered by Anonymous · 0 1

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