The length of a rectangle is twice it’s width. If the perimeter of the rectangle is 42cm. What is the rectangles Length?

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Answer 1 · 2018-06-17T14:40:34

the length of the rectangle will equal 14, and the 2 lengths together will equal 28 .

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Answer 2 · 2018-06-17T16:40:20

#color(red)("Width = 7cm and Length = 14cm"#

Let us assume the width to be #x.# and length to be #2x#

#"Perimeter" =42#

#=>2(l+b)=42#

#=>2(2x+x)=42#

#=>2(3x)=42#

#=>6x=42#

#=>x=42/6#

#=>x=7#

#therefore# #color(red)("Width=7cm and Length=14cm"#

~Hope this helps! :)