CBSE Class 10 Answered
The
radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm,
and its slant height is 10 cm. find its capacity and total surface area. Take
.
OR
A
bucket made up of a metal sheet is in the form of frustum of a cone. Its
depth is 24 cm and the diameters of the top and bottom are 30 cm and 10cm
respectively. Find the cost of milk which can completely fill the bucket at
the rate of Rs. 20 per litre and the cost of metal sheet used if it costs Rs.
10 per 100
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Here R = 33 cm, r = 27 cm and l = 10 cm
Capacity of the frustum
Total surface area =
OR
R = 15 cm, r = 5 cm and h = 24 cm
(i) Volume of bucket =
Cost of milk = Rs. (8.164 20) = Rs. 163.28
(ii) Total surface area of the bucket
Cost of sheet =
Answered by | 04 Jun, 2014, 03:23: PM
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