A right Circular Cone is mounted on a cyclinder of base is 14cm height of cylinder is 3cm and that of cone is 10.5 calculator CSA of solid and the cost of painting at 20ruppes per sq mertere
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33.4sq cm
Step-by-step explanation:
length = 14 cm
height = 3 cm
CSA of cylinder = 2 pie r h
= 10.5 = 2 × 22÷7 × r × 3
10.5 × 7 ÷ 2 × 22 =r
r = 1.670
to find the cost of the painting
1.670 × 20 = 33.4 sq cm
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