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

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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The base of a right prism is a triangle with sides 20 cm, 21 cm and 29 cm. If its volume is 7560 cm^3 , then its lateral surface area (in cm^2 ) is : एक लम्ब प्रिज्म का आधार एक त्रिभुज है जिसकी भुजाएं 20 सेमी, 21 सेमी और 29 सेमी की हैं | यदि इसका आयतन 7560 घन सेमी है, तो इसका पार्श्व पृष्ठ क्षेत्रफल ( वर्ग सेमी में ) ज्ञात करें |

The volume of a right pyramid is 45 sqrt3 cm^3 and its base is an equilateral triangle with side 6 cm. What is the height (in cm) of the pyramid ? एक लम्ब पिरामिड का आयतन 45 sqrt3 घन सेमी है और इसका आधार एक समबाहु त्रिधुज है जिसकी भुजा 6 सेमी है | इस पिरामिड की ऊंचाई (सेमी में ) ज्ञात करें |

A regular hexagonal base prism has height 8 cm and side of base is 4cm. What is the total surface area (in cm^2 ) of the prism? एक सम षट्भुज आधार वाले प्रिज्म की ऊँचाई 8 से.मी. है तथा आधार को भुजा 4 से.मी. है। प्रिज्म का कुल पृष्ठीय क्षेत्रफल ( से.मी.^2 में) क्या है?

The height of a right circular cone is 5 cm and its base radius is 12 cm. What is the curved surface area of the cone? एक लम्ब वृत्तीय शंकु की ऊंचाई 5 सेमी है तथा इसके आधार की त्रिज्या 12 सेमी है | इस शंकु का वक्र पृष्ठ क्षेत्रफल ज्ञात करें |

The internal diameter of a hollow hemispherical vessel is 24 cm. It is made of a steel sheet which is 0.5 cm thick. What is the total surface area (in cm^2 ) of the vessel ? एक खोखले अर्धगोलीय बर्तन का आतंरिक व्यास 24 सेमी है | यह इस्पात की चादर से बना हुआ है जिसकी मोटाई 0.5 सेमी है | इस बर्तन का कुल पृष्ठ क्षेत्रफल ( वर्ग सेमी में) ज्ञात करें |

The diameter of the base of a right circular cone is 10 cm and its height is 12 cm. What is the total surface area (in cm^2 ) of the cone? एक लम्ब वृत्तीय शंकु के आधार का व्यास 10 सेमी है तथा इसकी ऊंचाई 12 सेमी है | इस शंकु का कुल पृष्ठ क्षेत्रफल ( वर्ग सेमी में ) कितना है ?

The height of a cone is equal to its base radius and its volume is 72 pi cm^3 . What is its curved surface area in cm^2 ? एक शंकु की ऊंचाई इसके आधार की त्रिज्या के बराबर है तथा इसका आयतन 72 pi घन सेमी है | इसका वक्र पृष्ठ क्षेत्रफल ( घन सेमी में ) ज्ञात करें |

The base of a prism is a right angled triangle with two sides of 5 cm and 12 cm. The height of the prism is 10 cm. The total surface area of the prism is एक प्रिज्म का तल समकोणीय त्रिभुज है जिसकी दो भुजाएँ 5 सेमी और 12 सेमी है । प्रिज्म की ऊँचाई 10 सेमी है। प्रिज्प का कूल पृष्ठीय क्षेत्रफल कितना है?

The base of a right pyramid is an equilateral triangle with side 8 cm, and the height of pyramid is 24 sqrt 3 cm. The volume (in cm^3 ) of the pyramid is : एक लम्ब पिरामिड का आधार एक समबाहु त्रिभुज है जिसकी भुजा 8 सेमी की है | पिरामिड की ऊंचाई 24 sqrt 3 सेमी है | इस पिरामिड का आयतन ( घन सेमी में ) ज्ञात करें |

The volume of a right pyramid is 45sqrt3 cm^3 and its base is an equilateral triangle with side 6 cm. What is the height (in cm) of the pyramid? एक पिरामिड का आयतन 45sqrt3 सेमी^3 है और इसका आधार एक समबाहु त्रिभुज है, जिसकी भुजा 6 सेमी है। पिरामिड की ऊंचाई (सेमी में) क्या है?

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