Question

the length of rectangle is twice it's breadth . if the perimeter of rectangle is 180 cm find it's dimensions
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Answer 1

Answer:

Length = 60cm

Breadth = 30cm

Step-by-step explanation:

Let breadth be x

Then, length will be 2x

Perimeter of rectangle = 2(l+b) = 2(2x+x) = 2(3x) = 6x

So 6x = 180, then x = 180/6 = 30

Then

Breadth = 30cm

Length = 30 *2 = 60cm

Answer 2

Answer:

length=60 cm and breadth=30 cm

Step-by-step explanation:

l=length and b=breadth.

as we know perimeter of a rectangle is 2(l+b) and acc to question it is given 180 cmso 2(l+b)=180and l=2b (given in the question)therefore 2(2b+b) =180 { l=2b}2*3b=180b=180/6b=30cmand l=2b therefore l=2*30l=60cmtherefore l=60cm and b=30cmMark me brainlist !