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A right prism has height 18cm and its ba...

A right prism has height 18cm and its base is a triangle with sides 5 cm, 8 cm and 12 cm. What is its lateral surface area (in `cm^2`) ?

A

450

B

468

C

486

D

432

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A right prism has height 18cm and its base is a triangle with sides 5cm, 8cm and 12cm. What is the lateral surface area (in cm^2 )? एक लम्ब प्रिज्म की ऊंचाई 18 सेमी है तथा इसका आधार एक त्रिभुज है जिसकी भुजाएं 5 सेमी, 8 सेमी और 12 सेमी की हैं | पार्श्च पृष्ठ क्षेत्रफल (वर्ग सेमी में ) ज्ञात करें |

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