Question

If the Length of a rectangle is 80 cm and perimeter is 8 m then what will be the breadth and area of it

Answer 1

let be the breadth x

p =2× ( l×b)

p = 2 × 80 cm × x

800cm= 160 × x

800/160 = x

80/16 = x (0 to 0 cut)

20/4 = x ( cut by 4 table)

5 = x (cut by 4 table)

i hope you understand

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Answer 2

Answer :-

• Breadth = 320 cm

• Area = 25600 cm²

Given :-

• Length of Rectangle = 80cm

• Perimeter of Rectangle = 8m or 800 cm

To Find :-

• The Breadth of Rectangle.

• Area of Rectangle.

Step By Step Solution :-

In this question we already know the Perimeter = 800cm and the length of the Rectangle = 80cm.

Now we have to find the breadth and area of Rectangle.

So Let's Do It !!

$\boxed{ \sf { \purple{Perimeter \: of \: Rectangle = 2(Length + Breadth) }}}$

$\implies \sf \: 800 = 2( 80 + Breadth ) \\ \\ \implies \sf \: 800 = 160 + 2Breadth \\ \\ \implies \sf \: 800 - 160 = 2Breadth \\ \\ \implies \sf \: 640 = 2Breadth \\ \\ \implies \sf \cancel \cfrac{640}{2} = Breadth \\ \\ \implies \sf \: 320cm = Breadth$

Therefore Breadth = 320cm

$\boxed{ \sf{ \pink{Area = Length \times Breadth }}}$

Now Area ⤵

$\implies \sf \: Area = 320 \times 80 {cm}^{2} \\ \\ \implies \sf \: Area = 25600 {cm}^{2}$

Therefore Area = 25600 cm²

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