Plz help me, im stuck on this question, It says
2 answers:
Answer:
Perimeter of rectangle =2(l+b)
=2(3*1/10+3/4)
=2(3/10+3/4) (lcm=40)
=2(12/40+30/40)
=2(42/40)
=42/20
= 21/10
=21/10 cm
![perimeter = 2(3 \frac{1}{10}) + 2 (\frac{3}{4})](https://tex.z-dn.net/?f=perimeter%20%3D%202%283%20%5Cfrac%7B1%7D%7B10%7D%29%20%2B%202%20%28%5Cfrac%7B3%7D%7B4%7D%29%20)
![perimeter = \frac{31}{5} + \frac{3}{2}](https://tex.z-dn.net/?f=perimeter%20%3D%20%20%5Cfrac%7B31%7D%7B5%7D%20%20%2B%20%20%5Cfrac%7B3%7D%7B2%7D%20)
![perimeter = \frac{62}{10} + \frac{15}{10}](https://tex.z-dn.net/?f=perimeter%20%3D%20%20%5Cfrac%7B62%7D%7B10%7D%20%20%2B%20%20%5Cfrac%7B15%7D%7B10%7D%20)
![perimeter = \frac{77}{10}](https://tex.z-dn.net/?f=perimeter%20%3D%20%20%5Cfrac%7B77%7D%7B10%7D%20)
![perimeter = 7 \frac{7}{10}](https://tex.z-dn.net/?f=perimeter%20%3D%207%20%5Cfrac%7B7%7D%7B10%7D%20)
The unit is just cm.
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I might not be right. Double check to make sure. Hope that gives you a general idea of how to do it.
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Answer:
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