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किसी समलम्ब की समानान्तर भुजाओं का अनुपात `3:2` है। उनके बीच की दूरी 15 सेमी. है यदि समलम्ब का क्षेत्रफल `450 cm^(2)` हो, तब समानान्तर भुजाओं का योग ज्ञात करें?
A. 15 cm
B. 36 cm
C. 42 cm
D. 60 cm

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Correct Answer - D
माना कि समानान्तर भुजाएं हैं
`3x` and `2x`
`=1/2(3x+2x)xx15=450`
`implies 5x=60`
`implies x=12`
समानान्‍तर भुजाओं का योग
`=(3+2)xx12=60cm`

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