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A toy is in the form of a cone mounted on a hemisphere of radii 3.5 cm .the total height of the toy is 15.5 cm .find the total surfce area and volume of the toy?
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A toy is in the form of a cone mounted on a hemisphere of radii 3.5 cm...
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A toy is in the form of a cone mounted on a hemisphere of radii 3.5 cm...
Height of The cone = total height —radius of hemisphere 15.5—3.5=12cmslant height of cone=12.5cmtotal surface area of toy=curved surface area of cone + curved surface area of hemisphere πrl +2πr²πr(l+2r)=22/7×3.5(12.5+2×3.5)=11×19.5=214.5 Cm²Volume of toy= volume of cone +volume of hemisphere 1/3πr²h +2/3πr³12.83 +89.8=102.66cm³
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A toy is in the form of a cone mounted on a hemisphere of radii 3.5 cm .the total height of the toy is 15.5 cm .find the total surfce area and volume of the toy?
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