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A bus stop is barricaded from the remaining part of the road, by using 50 hollowcones made of recycled cardboard. Each cone has a base diameter of 40 cm and heightIm. If the outer side of each of the cones is to be painted and the cost of painting is12 per m', what will be the cost of painting all these cones? (Use i = 3.14 and takeV1.04 = 1.02) |
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Answer» according to the question height of cone=1m radius=.2m since ,only outer part is to be painted...which means,curved surface area curved surface area,of cone=πr(l+r) here,l=√r^2+h^2 l=√1.04=1.02 so curved surface area=3.14(1.02+.2) =3.14×1.22 =3.83m^2 cost of painting these comes=50×3.83×12=2298 hence ,sum of 2298 will be required ...... don't take tension...mod bhi tera account BINA kisi REASON ke DELETE nhi kr SKTA........... be brainly ✌️ |
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