Question

The diameter of a frustum of a cone are (30 and20)cm.If it's height is 5.3√7cm, then find its curved and total surface area of volume.(π3.14)

Answer 1

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Answer 2

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The answer of u r question is..✌️✌️

✖️The diameter of a frustum of a cone are 30cm and 20 CM if its height is 5.3 root 7 cm then find its curved and total surface area of volume✖️

Ans:✍️✍️✍️✍️✍️✍️✍️✍️

Given,

Diameter of frustum of a cone = 30 cm

Radius of frustum of a cone = 15 cm

Diameter of frustum of a cone = 20 cm

Radius of frustum of a cone = 10 cm

Height if the frustum of cone = 5.3√7 cm

To find CSA and TSA we have to find the "L" value.

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CSA = πl (R+ r)

= 3.14×14.8(15+10)

=46.472(25)

= 1161.8cm^3

TSA = πrl

= 3.14×25×14.8

= 1161.8 cm^3

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