A military tent is in the form of a right circular cone of vertical height 9 m, the diameter of the base being 10.5 m. If 18 soldiers can sleep in it, find the average cubic meters of air space available to each soldier.
Solution not provided.
Ans.
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So circular plates, each of radius 7 cm and thick ness cm are placed one above another to form a solid right circular cylinder. Find the total surface area and the volume of the cylinder so formed.
Solution not provided.
Ans. 1408 cm2
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The four of a rectangular hall has a perimeter 110 m. If the cost of painting the four walls at the rate of र 10 per m2 in र 13200, find the height of the hall.
Solution not provided.
Ans. 12 m
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th of a cylindrical can contains milk. The height of the can is 1.4 m and radius is 0.4 m. This milk is poured into small cylindrical glasses of height 10 cm and radius 5 cm. How many small glasses are needed to empty the can?