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प्रश्न
The perimeter of a rectangular plot of land is 80 m and its breadth is 16 m. Find the length and area of the plot.
उत्तर
As, a perimeter 80m
⇒` 2"(Length+Breath)"=80`
⇒` 2"(Length+16)"=80`
⇒`2xx"Length"+32=80`
⇒`2xx"Length"=80-32`
⇒`"Length"=48/2`
∴ `"Length"=24m`
Now, the area of the plot =`"length" xx "breadth" `
=`24xx16`
=`384m^2`
So, the length of the plot is 24 m and its area is `384. m^2`
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