Question

(5) The length of a rectangle is 1 cm more than twice its
breadth. What is the length, if the breadth is 'b'cm? ​

Answer 1

Answer:

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Step-by-step explanation:

⇒ Length of rectangle is 1 cm more than twice its breadth.

⇒ Perimeter = 50 cm

⇒ Perimeter = 2 × (l + b)

Let breadth (b) of rectangle be x.

So, length (l) = 2x + 1

⇒ Perimeter = 2 × (l + b)

⇒ 50 = 2 × (2x + 1 + x)

⇒ 50 = 2(3x + 1)

⇒ 50 = 6x + 2

⇒ 50 - 2 = 6x

⇒ 48 = 6x

⇒ x = 48/6

⇒ x = 8 cm.

Now, Breadth = 8 cm.

Length = 2 × 8 + 1 = 17 cm