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Wooden toy is in the form of a cone surmounted on a hemisphere with diameter of the base of the cone is 6 cm and its height is 4 cm find the cost of painting the toy at the rate of 5 rupees per 1000 CM square |
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Answer» .TSA of the Toy πrl +2πr^2, r is radius=3cm, h=4cm l=slant HEIGHT of CONE,l=v3^2+4^2 = 5cm πrl+2πr^2 = πx3x5+ 2πx3x3 I5π+18π = 33π = 33x3.14=103.62cm2 cost of painting = lO3.62x5/1000=. 52ps |
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