Find the radius and slant height of the cone. The radius and height of a right circular cone are in the ratio 5:12 and its volume is 2512 cubic cm. Find the volume of the air contained in it. ![]() The circumference of the base of a 12 m high conical tent is 66 m. Inner radius of the pipe = r =\(\frac\) of the sheet actually used was wasted in making the tank?Ĭylinder, Cone and Sphere Surface Area and Volume Exercise 20B – Selina Concise Mathematics Class 10 ICSE Solutionsįind the volume of a cone whose slant height is 17 cm and radius of base is 8 cm. Find the weight, in kilogram, of 2 metres of the pipe if 1 cm3 of the metal weights 7.7 g. (ii) the volume of the cylinder correct to one decimal place.Ī metal pipe has a bore (inner diameter) of 5 cm. (i) the height of the cylinder correct to one decimal place. Some Applications of Trigonometry Class 10 FormulasĪ cylinder has a diameter of 20 cm.Pair Of Linear Equations in Two Variables Class 10 Formulas.Arithmetic Progression Class 10 Formulas.Introduction to Trigonometry Class 10 Formulas.Surface Areas and Volumes Class 10 Formulas.Area Related to Circles Class 10 Formulas. ![]() What length of solid cylinder 2 cm in diameter must be taken to recast into a hollow cylinder of external diameter 20 cm, 0.25 cm thick and 15 cm long? How many cubic meters of earth must be dug out to make a well 28 m deep and 2.8 m in diameter? Also, find the cost of plastering its inner surface at Rs 4.50 per sq meter. How much water can 12 m of this pipe hold? The height of a circular cylinder is 20 cm and the radius of its base is 7 cm.
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