Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden box covered w...
2,779 views · Published 20 July 2018 · 3:23 · Indexed 20 September 2026
Channel: Doubtnut · 2018 · Education
Question From - NCERT Maths Class 9 Chapter 13 SOLVED EXAMPLES Question – 1 SURFACE AREAS AND VOLUMES CBSE, RBSE, UP, MP, BIHAR BOARD QUESTION TEXT:- Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden box covered with coloured paper with picture of Santa Claus on it (see Fig. 13.4). She must know the exact quantity of paper to buy for this purpose. If the box has length, breadth and height as 80 cm, 40 cm and 20 cm respectively how many square sheets of paper of side 40 cm would she require? Doubtnut के साथ १००% मार्क्स पायें, आज ही डाउनलोड करें :- https://doubtnut.app.link/91GzfmKxjP Related Questions & Solutions: 1. Hameed has built a cubical water tank with lid for his house, with each outer edge 1.5 m long. He gets the outer surface of the tank excluding the base, covered with square tiles of side 25 cm (see Fi... https://youtu.be/fBfCQx2T34w 2. Savitri had to make a model of a cylindrical kaleidoscope for her science project. She wanted to use chart paper to make the curved surface of the kaleidoscope. (see Fig 13.10). What would be the area... https://youtu.be/nOW1UbUZRO4 3. Find the curved surface area of a right circular cone whose slant height is 10 cm and base radius is 7 cm... https://youtu.be/9MNF8yM6tYA 4. The height of a cone is 16 cm and its base radius is 12 cm. Find the curved surface area and the total surface area of the cone... https://youtu.be/yrRLf8C2eIE 5. A corn cob (see Fig. 13.17), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length (height) as 20 cm. If each `1 cm^2` of the surface of the cob carries an average of fo... https://youtu.be/5dAaeJigkG0 Get Classwise & Chapterwise Definitions & Solutions from NCERT Book: • NCERT Solutions for class 6th to class 12th Maths - https://doubtnut.com/ncert-solutions • NCERT Solutions for Class 9 - https://doubtnut.com/ncert-solutions/class-9-maths-1 • NCERT Solutions for Class 9, Chapter 13 - https://doubtnut.com/ncert-solutions/class-9-maths-chapter-13-surface-areas-and-volumes-1 Score 100% With Doubtnut Prepare your class 9 subjects with our intuitive video solutions and score well in your final academic exam 2019-20. Students can click the doubt question from their text book of class 9 maths, science and find instant video solutions on our renowned doubt solving app or even on our website. Subscribe our channel for latest and trending videos on various topics from subjects like – Maths, Physics, Chemistry, Biology etc for Board & higher studies. Doubtnut ऍप पर आप कक्षा ६ से १२ (IIT JEE तक) के NCERT के गणित/ भौतिक विज्ञान/रसायन विज्ञान/जीव विज्ञान/ के सभी सवालों के वीडियो देखिये और मुफ्त में खोजिये किसी भी गणित सवाल का जवाब - 5 लाख से भी ज़्यादा सवालों के जवाब हैं Doubtnut ऍप पर Doubtnut App and website has video solutions of ALL the NCERT questions from Class 6 to 12. You can download the NCERT solutions in pdf format too. Student can prepare for IIT JEE at https://doubtnut.com/iit-solutions, where questions from popular books of Math, Physics, Chemistry , Biology are solved for easy and swift learning. Doubtnut app provides free online video solutions that help students to better understand each topic and retain what they have learnt for a longer duration. It further helps in creating a stronger foundation for future classes. You can also ask any question related to Math, Physics, Chemistry, Biology and get a video solution for FREE from a library of more than 5 Lakhs Videos Follow Us On Facebook https://www.facebook.com/doubtnut
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