Question

the length and breadth of a rectangular plot are in the ratio 9 ratio 5 if its perimeter is 28 find its area.


please answer me fast because tomorrow is my exam​

Answer 1

Answer:

Let the sides be -

Length= 9x

Breadth= 5x

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$\color{black}\boxed{\colorbox{saffron}{Perimeter-2(length+breadth) }}$

28= 2(9x+5x)

28= 28x

=x=28cm

So, length=9(unit)

Breadth= 5(unit)

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Area-

$\color{black}\boxed{\colorbox{saffron}{Area - length×breadth}}$

$9 \times 5 \\ \\ = {45(given \: unit)}^{2}$

Answer 2

Answer:

The area of the rectangular plot is 45 unit^2

Step-by-step explanation:

Let,

the length and breadth of the rectangular plot be 9x and 5x respectively.

Also,

It's perimeter = 28

=> 2 ( 9x + 5x ) = 28

=> 14x = 28/2

=> x = 14/14

•°• x = 1

•°• It's length and breadth are respectively (9×1) unit = 9unit^2 and (5×1) unit = 5 unit^2

•°• The area of the rectangular plot

= length × breadth

= ( 9 × 5 ) unit^2

= 45 unit^2

Best of luck for your exam