Question

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Answer 1

$\bigstar$ Answer:

$\star$ Let the length and breadth of rectangle be l and b.

$\star$ A/c to given condition ,

$\star$ l = 2b -9 ... (1)

$\star$ Given , lb = 425 ...(2)

$\star$ sub. (1) in (2) , we get ,

=> ( 2b - 9 ) b = 425

=> 2b² - 9b - 425 = 0

=>2b² - 34 b + 25 b - 425 = 0

=> 2b (b-17)+25(b-17)=0

=>(b-17)(2b+25) = 0

=> b = 17 , b = -12.5

$\star$ But length can't be negative.

$\star$ So , b =17

$\star$ sub. b=17 in (2) , we get ,

=> l =25

$\star$ So , Length , l = 25 cm and breadth , b = 17 cm

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