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  • The shape of a glass (tumbler) (see figure) is usually in the form of (A) a cone (B) frustum of a cone (C) a cylinder (D) a sphere

The shape of a glass (tumbler) (see figure) is usually in the form of

(A) a cone
(B) frustum of a cone
(C) a cylinder
(D) a sphere

Answers (1)

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Answer: (B) frustum of a cone

Solution.
(A) A cone – A cone is a three dimensional geometrical shape that topers smoothly from a flat base to a point called the apex or vertex.

(B) Frustum of a cone – It is a portion of a solid that lies between one or two parallel planes cutting it.

(C) A cylinder – A cylinder is a three dimensional solid that has two parallel based joined by a curved surface at a fixed distance.

(D) A sphere – The set of all points in three dimensional space lying the same distance from a given point.    

Hence the shape of a glass is usually in the form of frustum of a cone.

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