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ruslelena [56]
3 years ago
15

Please help me find the perimeter of the three shapes please . Thank you soooooooo much guys

Mathematics
2 answers:
liraira [26]3 years ago
7 0
1. 7 + 7 + 5 = 19 m


2. 5 + 5 + 5 + 5 = 20 m


3. 1 + 2 + 3+ 2 + 3 + 5 = 16 m
andrew11 [14]3 years ago
7 0
Perimeter is adding all the outside sides together
1. 7+7+5
14+5= 19 m
3. The dashes mean that the sides are equal so each side is 5
5+5+5+5
10+10= 20cm
Last question.
The sides are 5,3,?,2,1,3,2,?
Look at the top add 5+2 this will give you the length of the whole side
this will let you figure out the bottom missing side
5+2=7
the bottom whole peice will be 7 also so to find the missing peice you will subtract 7-1
the missing piece measure is 6

5,3,7,2,1,3,2,?

Do the same to the right side add 3+2
This will give you the total length of the left and right side (5)
Now subtract 3 from it to find the missing peice
5-3=2
5,3,6,2,1,3,2,2
Now you have all the lengths of the sides
Add them together
5+3+6+2+1+3+2+2
8+6+3+3+4
14+6+4
20+4= 24m
*don't forget to write down in what unit it is measured in!!*
Hope I explained it clearly
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