Скачать или смотреть Chapter 13 Surface Areas and Volumes Exercise 13.6 | Class 9 Maths NCERT Question Answer

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✅ In this video,
✔️ Class: 9th
✔️ Subject: Maths
✔️ Chapter: 13- Surface Areas and Volumes
✔️ Topic Name: Exercise 13.6

✔️ कक्षा: 9वीं
✔️ विषय: गणित
✔️ अध्याय: 13- पृष्ठ क्षेत्रफल और आयतन
✔️ विषय का नाम: अभ्यास 13.6

✔ kaksha: 9veen
✔ vishay: ganit
✔ adhyaay: 13- prishth kshetrafal aur aayatan
✔ vishay ka naam: abhyaas 13.6

Question Covered :-
1. The circumference of the base of a cylindrical vessel is 132cm and its height is 25cm. How many litres of water can it hold? (1000 cm3= 1l)
2. The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm. The length of the pipe is 35 cm. Find the mass of the pipe, if 1 cm3 of wood has a mass of 0.6 g.
3. A soft drink is available in two packs (i) a tin can with a rectangular base of length 5 cm and width 4 cm, having a height of 15 cm and (ii) a plastic cylinder with circular base of diameter 7 cm and height 10 cm. Which container has greater capacity and by how much?
4. If the lateral surface of a cylinder is 94.2 cm2 and its height is 5 cm, then find: (i) radius of its base (ii) its volume. (Use π = 3.14)
5. It costs ₹ 2200 to paint the inner curved surface of cylindrical vessel 10 m deep. If the cost of painting is at the rate of ₹ 20 per m2; find: (i) inner curved surface of the vessel (ii) radius of the base (iii) capacity of the vessel.
6. The capacity of closed cylindrical vessel of height 1 m is 15.4 litres. How many square metres of metal sheet would be needed to make it?
7. A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior. The diameter of the pencil is 7 mm and the diameter of graphite is 1 mm. If the length of the pencil is 14 cm, find the volume of the wood and that of the graphite.
8. A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm. If the bowl is filled with soup to a height of 4 cm, how much soup the hospital has to prepare daily to serve 250 patients?
1. ek belanaakaar bartan ke aadhaar kee paridhi 132 semee aur oonchaee 25 semee hai. isamen kitane leetar paanee aa sakata hai? (1000 semee3 = 1 leetar)
2. ek belanaakaar lakadee ke paip ka aantarik vyaas 24 semee aur baaharee vyaas 28 semee hai. paip kee lambaee 35 semee hai. yadi 1 semee3 lakadee ka dravyamaan 0.6 graam hai, to paip ka dravyamaan gyaat keejie.
3. ek sheetal pey do paik mein upalabdh hai: (i) ek tin ka dibba jisaka aayataakaar aadhaar 5 semee lamba aur 4 semee chauda hai, jisakee oonchaee 15 semee hai aur (ii) ek plaastik ka belan jisaka vrttaakaar aadhaar 7 semee vyaas aur oonchaee 10 semee hai. kis bartan kee dhaarita adhik hai aur kitanee?
4. yadi ek belan ka paarshv prshth 94.2 semee2 hai aur oonchaee 5 semee hai, to gyaat keejie: (i) isake aadhaar kee trijya (ii) isaka aayatan. (p = 3.14 ka prayog karen)
5. 10 meetar gahare belanaakaar bartan kee aantarik vakr satah ko pent karane mein ₹ 2200 ka kharch aata hai. yadi penting kee laagat ₹ 20 prati varg meetar kee dar se hai; to gyaat keejie: (i) bartan kee aantarik vakr satah (ii) aadhaar kee trijya (iii) bartan kee dhaarita.
6. 1 meetar oonchaee vaale band belanaakaar bartan kee dhaarita 15.4 leetar hai. ise banaane ke lie kitane varg meetar dhaatu kee sheet kee aavashyakata hogee?
7. ek led pensil lakadee ke ek belan se banee hai jisake bheetaree bhaag mein grephait ka ek thos belan bhara hua hai. pensil ka vyaas 7 mimee aur grephait ka vyaas 1 mimee hai. yadi pensil kee lambaee 14 semee hai, to lakadee aur grephait ka aayatan gyaat keejie.

1. एक बेलनाकार बर्तन के आधार की परिधि 132 सेमी और ऊँचाई 25 सेमी है। इसमें कितने लीटर पानी आ सकता है? (1000 सेमी3 = 1 लीटर)
2. एक बेलनाकार लकड़ी के पाइप का आंतरिक व्यास 24 सेमी और बाहरी व्यास 28 सेमी है। पाइप की लंबाई 35 सेमी है। यदि 1 सेमी3 लकड़ी का द्रव्यमान 0.6 ग्राम है, तो पाइप का द्रव्यमान ज्ञात कीजिए।