Asked by Kaur
The tent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of cylindrical part are 9 m and 30 m respectively and height of conical part is 8 m with same diameter as that of the cylindrical part, then find
(1) the area of the canvas used in making the tent;
(2) the cost of the canvas bought for the tent at the rate 200 per sq m. if 30 sq m canvas was wasted during stitching.
(1) the area of the canvas used in making the tent;
(2) the cost of the canvas bought for the tent at the rate 200 per sq m. if 30 sq m canvas was wasted during stitching.
Answers
Answered by
oobleck
(1) Assuming that the tent has no floor, then the area is just the lateral area of the cylinder, plus that of the cone.
A = 2πrh + 1/3 πr^2 h = 2π*15*9 + 1/3 π * 15^2 * 8 = 870π
(2) 200(870π + 30)
A = 2πrh + 1/3 πr^2 h = 2π*15*9 + 1/3 π * 15^2 * 8 = 870π
(2) 200(870π + 30)
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