answer this......................
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swarajsanket:
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Are you sure the numbers given are correct ?
length = a breadth = b
area = a b = (64 x² - 121) as area > 0, x > 11/8 cm
perimeter = 2 (a+b) = 64 cm a + b = 32 cm
(a - b)² = (a+b)² - 4 ab = 32² - 4(64 x² - 121)
= 1,508 - 256 x²
a - b = +- 2 √[377 - 64 x²] cm
a + b = 32 cm
breadth b = 16 - √(377 - 64x²) cm
clearly, x < √377 /8
so 1.375 < x < 2.427
length = a breadth = b
area = a b = (64 x² - 121) as area > 0, x > 11/8 cm
perimeter = 2 (a+b) = 64 cm a + b = 32 cm
(a - b)² = (a+b)² - 4 ab = 32² - 4(64 x² - 121)
= 1,508 - 256 x²
a - b = +- 2 √[377 - 64 x²] cm
a + b = 32 cm
breadth b = 16 - √(377 - 64x²) cm
clearly, x < √377 /8
so 1.375 < x < 2.427
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hlw mate,
ur answer is in the attachment
ur answer is in the attachment
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