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Andreyy89
3 years ago
14

Can someone tell me how to do this! #2 & #4

Mathematics
2 answers:
torisob [31]3 years ago
8 0
2) The area is 1.1 m^2 because to find the area the formula is width*length. SO you would separate it. It would be 0.9 * 1 = 0.9 and 0.4 * 0.5 = 0.2. Then you add it together. So it would be 1.1 m^2. The perimeter is all the sides added together so 4.2 m, but it says mm so you have to convert it and you get 4200.
4) Area is 1.16 cm^2. Again you would seperate it. So, 1 * 1 = 1 and .2 * .8 = .16. Then you add it together and get 1.16 cm^2. The perimeter is all the sides added up. You get 4.2 cm. 
Studentka2010 [4]3 years ago
6 0
A= lxw
P=L+w+L+W
hope this helps ;)
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Answer:

  Perimeter of the rectangle  = 6 x +20

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Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the length of the rectangle = 2x +3

Given that the width of the rectangle = x +7

Perimeter of the rectangle   = 2(length + width)

<u>Step(ii):-</u>            

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                                                  = 2(2 x +3 + x+7)

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3 years ago
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4 0
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