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ALăăt is in the form of frustum of a cone and holds 28.490 litres of water. The radi of the topand bottom are 28cmand 21cm respectivcly. Find the height of the bucket.lar cylinder |
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Answer» R = 28 cmr = 21 cmLet height of frustum be h cm ∴Volume held by bucket = 28.490 litres = 28490 cm³Also, Volume of frustum = π(R²+Rr+r²)h/3=> 28490 = 22*(784+588+441)*h/(3*7)=> 1813h =28490*21/22=> h = 27195/1813 = 15cm hit like if you find it useful |
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