idreesssproductions7
idreesssproductions7 idreesssproductions7
  • 25-08-2021
  • Mathematics
contestada

A rectangle has a height of 3 cm and width of 5cm. A proportional rectangle has a height of 12cm. What would be the width?

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Аноним Аноним
  • 25-08-2021

The ratio will be same

  • Let width be x

[tex]\\ \sf\longmapsto \dfrac{3}{5}=\dfrac{12}{x}[/tex]

[tex]\\ \sf\longmapsto 3x=5(12)[/tex]

[tex]\\ \sf\longmapsto 3x=60[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{60}{3}[/tex]

[tex]\\ \sf\longmapsto x=20cm[/tex]

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dinithisula
dinithisula dinithisula
  • 25-08-2021

Answer:

width=20 cm

Step-by-step explanation:

h=3 cm

w=5 cm

proportional rectangle:

   height=12

  • Here height has become 12 by multiplying 3 by 4.Therefore to find the width do the same thing.

 width=5*4

          =20 cm

Answer Link

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