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35 votes
35 votes
the length of a rectangle is four times as long as it's width. the perimeter of the rectangle is 50cm. find it's length​

User Psycho
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1 Answer

11 votes
11 votes

Explanation:

let the width be x and length be 4x , as it is 4 times more than width

given,

perimeter = 50 cm

we know,

perimeter = 2l + 2b/w

so,

2l + 2b = 50

after inserting the values we got,

2(4x) + 2(x) = 50

8x + 2x = 50

10x = 50

x = 50/10 = 5

x = 5

therefore, length = 4x = 4×5 = 20 cm

hope this answer helps you dear....take care and may u have a great day ahead!

User Searles
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