A hemisphherical dome,open at base, is made from a sheet of fiber,if radius of hemispherical dome is 40cm.and 13/170 of fiber sheet used was wasted in making the dome them find cost of the dome at the rate of Rs 35 per 100cm square. (take pie=3.14)
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If the radius of the hemispherical dome is 40cm and 13170 of the fibre sheet was wasted in making the dome at the rate of 35 per 100cm2 . The formula for the surface area of the hemisphere is equal to 2πr2 .
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