Please put some questions related to the 'cube and cuboid' according to class 8th CBSE
Answers
Step-by-step explanation:
1. What is the longest pole that can be put in a room of dimensions l = 10 cm, b = 10 cm and h = 5 cm?
(1 mark)
2. If the total surface area of a sphere is 154 cm2. Find its total volume.
(2 mark)
3. If the radius of a sphere is 3r then what is its volume?
(1 mark)
4. If the total surface area of a cube is 216 cm2, then find its volume.
(2 mark)
5. If the circumference of the base of a right circular cylinder is 110 cm, then find its base area.
(3 mark)
6. If the radius of a sphere is doubled, then find the ratio of their volumes.
(2 mark)
7. The radius of a cylinder is 7 cm. If its volume is 2002 cm3, then find its height and total surface area.
(3 mark)
8. The diameter of a road roller, 120 cm long is 84 cm. If it takes 500 complete revolutions to level a playground, find the cost of levelling it at Rs. 2 per square metre.
(3 mark)
9. A conical tent of radius 7 m and height 24 m is to be made. Find the cost of the 5 m wide cloth required at the rate of Rs. 50 per metre.
(3 mark)
10. How many lead balls, each of radius 1 cm, can be made from a sphere of radius 8 cm?
(4 Mark)
Answer:
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