Question

the length and perimeter of a rectangular field is 80 metre and 20 decametres respectively. find the breath of that feild​

Answer 1

Step-by-step explanation:

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Answer 2

Answer :

We have,

• The length and perimeter of a rectangular field is 80 metre and 20 decametres.

To do,

• Find the breadth of the field.

Step by Step Explanation :

Let the breadth be x,

Convert the values,

• We have perimeter = 20 decametre.
• We know that, 1 decametre = 10 metre
• Covert it into metre , 20 × 10 = 200 metre

Formula for perimeter of Rectangle

$\large{\boxed{\sf{Perimeter\; of \;Rectangle= 2( l + b )}}}$

Put values in formula,

${\sf{Perimeter\; of \;Rectangle= 2( l + b )}}$

${\sf{200= 2( 80 + x )}}$

${\sf{200= 160 + 2x )}}$

${\sf{200 - 160= 2x }}$

${\sf{40= 2x }}$

${\sf{\cancel{\dfrac{40}{2}}= x }}$

20 = x

•°• The breadth of the field is 20 metre respectively.

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