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किसी प्रिज्म का आधार एक समलम्ब है। समलम्ब की समानान्तर भुजाऐं 8 सेमी. तथा 14 सेमी. है तथा उनके बीच की दूरी 8 सेमी. है। यदि प्रिज्म का आयतन `1056 cm^(2)` हो तब प्रिज्म की ऊंचाई ज्ञात करें?
A. 44 cm
B. 16.5 cm
C. 12 cm
D. 10.56 cm

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Correct Answer - C
समलम्ब चतुर्भुज का क्षेत्रफल
`=1/2xxh(AB+CD)`
`=1/2xx8xx(8+14)`
`=4xx22xx=88cm^(2)`
`=` प्रिज्म का आयतन `xx` प्रज्‍मि की ऊंचाई `xx` प्रिज्म का आधार
`implies` height `xx88=1056` (given)
`implies` height `xx88=1056/88`
`implies 12cm`

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