Question

The length of a rectangle is twice its breadth. If the perimeter of the rectangle is 180 cm, fin
dimensions.​

Answer 1

answer is 90 2x= 180 ; answer is 90

Answer 2

Answer:

According to the question:

$l = 2b \\ where \: l \: is \: length \: and \: b \: is \: breadth \: of \: rectangle \\ and \: \: \: \: \: peimeter = 180 \\ as \: we \: know \: perimeter \: of \: reactangle \: = 2(l + b) \\ so \: \: \: \: \: \: 2(l + b) = 180 \\ l + b = \frac{180}{2} \\ 2b + b = 90 \\ 3b = 90 \\ b = \frac{90}{3} = 30 \\ so \: \: \: \: l = 2b \: = 2 \times 30 = 60 \\ the \: length = 60cm \: \\ breadth = 30cm$

Step-by-step explanation:

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