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3 years ago

The length of a rectangle is twice it’s width.The length is 12cm.Work out the area of the rectangle

Mathematics

1 answer:

aliina [53]3 years ago

6 0

Answer:

Step-by-step explanation:

As with all word problems we first have to convert it to an equation or equations.

L = length of the Rectangle and W = its width

So L = 2 * W

A = area of the rectangle which is 128 cm^2

So A = L * W = 128 cm^2

substitute 2W for L from the 1st equation to give A = 2 * W * W = 2 * W^2 = 128 cm^2

Thus W^2 = 64 cm^2

finally W = 8 cm and therefore L = 2 * W = 16 cm

The perimeter P = 2 * (L+W) = 2* (8cm + 16cm) = 2 * 24cm = 48 cm

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sertanlavr [38]

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3 years ago

At D.J.s Drink stand Erika ordered a cup of fruit punch made using 1/4 cup of lemonade 1/12 cup of cranberry juice. What fractio

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Why?

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Have a nice day!

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4 years ago

I need help with this ?

NeX [460]

Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago