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Question 7: A joker’s cap is in the form of a right circular cone of base radius 7 cm and height 24 cm. Find the area of the sheet required to make 10 such caps. Question 6 Question 8
Read MoreQuestion 6: The slant height and base diameter of a conical tomb are 25 m and 14 m respectively. Find the cost of white-washing its curved surface at the rate of Rs. 210 per 100 m². Question 5 Question 7
Read MoreQuestion 5: What length of tarpaulin 3 m wide will be required to make conical tent of height 8 m and base radius 6 m? Assume that the extra length of material that will be required for stitching margins and…
Read MoreQuestion 4: A conical tent is 10 m high and the radius of its base is 24 m. Find slant height of the tent. cost of the canvas required to make the tent, if the cost of 1 m² canvas…
Read MoreQuestion 3: Curved surface area of a cone is 308 cm² and its slant height is 14 cm. Find radius of the base and total surface area of the cone. Question 2 Question 4
Read MoreQuestion 2: Find the total surface area of a cone, if its slant height is 21 m and diameter of its base is 24m. Question 1 Question 3
Read MoreQuestion 1: Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area. Ex: 13.2 | Question 11 Question 2
Read MoreQuestion 11: The students of a Vidyalaya were asked to participate in a competition for making and decorating penholders in the shape of a cylinder with a base, using cardboard. Each penholder was to be of radius 3 cm and…
Read MoreQuestion 10: In Fig. 13.12, you see the frame of a lampshade. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm…
Read MoreQuestion 9: Find the lateral or curved surface area of a closed cylindrical petrol storage tank that is 4.2 m in diameter and 4.5 m high. how much steel was actually used, if 1/12 of the steel actually used was…
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