Question

the perimeter of the rectangular sheet is 100 cm. the length is 35 cm find breadth and area​

Answer 1

$\huge \color{red} \mathfrak Answer :- \\ \\ Perimeter \: = 2(l + b) \\ 100 = 2(35 + b) \\ \frac{100}{2} = 35 + b \\ 50 - 35 = b \\ 15 \: cm \: = b \\ \\ Area \: = l \times b \\ = 35 \times 15 \\ = 525 \: {cm}^{2}$

Answer 2

Step-by-step explanation:

Hello mate

Here is your answer

Let the breadth be x

Then, perimeter of the given rectangle = 2*(l+b)

= 2*(35+x)

=> 70+2x

But perimeter = 100 cm (given)

hence, 70+2x= 100

=> 2x = 100-70

=> x = 30/2

=> x = 15

So, breadth = 15 cm

Now area = length *breadth = (35*15)cm^2

= 525 cm^2

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