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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 cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melted and recast into a sphere. The radius of the sphere 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.
The height of a cone is 16 cm and its base radius is 12 cm. Find the curved surface area and the total surface area of the cone (Use π = 3.14).
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