Question

If the length of a rectangle is 3 times its breadth and the breadth is x units, then its perimeter is
a) 4x units
(b) 6x units
(c) 8x units
(d) 10x units.


fast
also explain why​

Answer 1

Answer:

(c) 8x units

Step-by-step explanation:

Let the breadth be x .

Let length be 3x.

Perimeter of a rectangle = 2 (L+B)

Therefore, perimeter = 2 ( x+3x)

                                  ⇒ 2 × 4x

                                   ⇒ 8x units

Answer 2

Answer:  8x units

Hiii...Hope you understand  ^-^

Length = 3x

Breadth = x

Perimeter of a rectangle = 4 (l + b)

                                         = 4 (3x +x)

                                         = 4 x 4x

                                         = 8x units

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