Surface areas and Volumes chap 13

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Excercise 13. 4

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SURFACE AREAS AND VOLUMES: 

SURFACE AREAS AND VOLUMES CHAPTER - 13 EXERCISE - 13.4

Use = 22/7 unless stated otherwise.QUESTION 1:- A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4cm and 2cm. Find the capacity of the glass.: 

Use = 22/7 unless stated otherwise. QUESTION 1:- A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4cm and 2cm. Find the capacity of the glass.

QUESTION 2:- The slant height of a cone is 4 cm and the perimeters (circumference) of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.: 

QUESTION 2:- The slant height of a cone is 4 cm and the perimeters (circumference) of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.

QUESTION 3:- A fez, the cap used by the Turks, is shaped like the frustum of a cone (see Fig.). If its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is 15cm, find the area of material used for making it.: 

QUESTION 3:- A fez, the cap used by the Turks, is shaped like the frustum of a cone (see Fig.). If its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is 15cm, find the area of material used for making it.

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