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The height of a conical vessel is 3.5 cm. If its capacity is 3.3 litres of milk. Find the diameter of its base.
The radius and slant height of a cone are in the ratio 4 : 7. If its curved surface area is 792 cm², find its radius. (Use π = 22/7).
A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required
The total surface area of a cone whose radius is r/2 and slant height 2l is
Once upon a time in Ghaziabad was a corncob seller. During the lockdown period in the year 2020, his business was almost lost. So, he started selling corn grains online through Amazon and Flipkart. Just to understand how many grains he will have from one corncob, he started counting them. Being a student of mathematics, let's calculate it mathematically. Let's assume that one corncob (see Fig.), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length as 20 cm.
Find the curved surface area of a right circular cone whose slant height is 10 cm and base radius is 7 cm.
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