Question

The perimeter of a rectangle is 40 cm. The ratio of its sides is 2 : 3. Find its length and breadth.

Answer 1

Answer:

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The perimeter of a rectangle is 40 cm

Let the length be 2x

Breadth = 3x

Perimeter of the rectangle

$\huge= 2(2x + 3x)$

$\huge = 2 \times 5x$

$\huge 10x$

By the condition

$\huge \: or \: 10x = 40$

$\huge \: or \: x = \frac{40}{10}$

$\huge \: x = 4cm$

Length = 2×4

= 8cm

Breadth = 3×4

= 12cm

Answer 2

Answer:

8cm and 12 cm

Hope it's correct

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