Top 10 Most Important Questions 🔥 (Repeated PYQs) on the Surface area and volume | Class 10 Maths

Описание: Ace Class 10th Maths Board Exam with our focused guide on 10 IMPORTANT QUESTIONS OF SURFACE AREAS! 📐 Simplify complex problems, boost preparation, and enhance confidence. Dive into this concise tutorial to ensure you're ready to tackle key questions and excel in the exam. Don't miss this essential resource!


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**Timestamps**
0:00- Introduction
0:38- Formula table of 3D shapes
1:07- Question 1 (A rectangular sheet of paper of size 11 cm x 7 cm is first rotated about the side 11 cm and then about the side 7 cm to form a cylinder, as shown in the diagram. Find the ratio of their curved surface areas )
3:43- Question 2 (The difference between the outer and inner radii of a hollow right circular cylinder of length 14 cm is 1 cm. If the volume of the metal used in making cylinder is 176 cm³,find the outer and inner radii of the cylinder )
6:21- Question 3 ( A solid is in the shape of a hemisphere of radius 0.7 𝑐𝑚, surmounted by a cone of height 4 𝑐𝑚 . The solid is immersed completely in a cylindrical container filled with water to a certain height. If the radius of the cylinder is 14 𝑐𝑚 level, find the rise in the water )
10:29- Question 4 ( A heap of rice is in the form of a cone of base diameter 24 m and height 3.5 m. Find the volume of the rice. How much canvas cloth is required to just cover the heap)
13:09- Question 5 (A solid wooden cylinder is of radius 6 cm and height 16 cm. Two cones each of radius 2 cm and height 6 cm are drilled out of the cylinder. Find the volume of the remaining solid )
15:16- Question 6 (A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as shown in figure. If the height of the cylinder is 10 cm and its base is of radius 3.5 cm. Find the total surface area of the article)
17:47-Question 7 (In the given figure, a tent is in the shape of a cylinder surmounted by a conical top of same diameter. lf the height and diameter of cylindrical part are 2.1 m and 3 m respectively and the slant height of conical part is 2.8 m,find the cost of canvas needed to make the tent if the canvas is available at the rate of Rs.500 per sq. metre)
21:41- Question 8 (From a solid wooden cylinder of height 28 cm and diameter 6 cm,two conical cavities are hollowed out. The diameters of the cones are also of 6 cm and height 10.5cm. Find the volume of the remaining solid.)
24:57-Question 9 (The radius of the base and the height of a solid right circular cylinder are in the ratio 2:3 and its volume is 1617 cm³. Find the total surface area of the cylinder )
27:56- Question 10 (An empty cone is of radius 3 cm and height 12 cm. Ice cream is filled in it so that the lowerpart of the cone which is 1/6th of the volume of the cone is unflled but the hemisphere is formed on the top. Find the volume of the ice cream )


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