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An iron pole consisting of a cylindrical portions 110 cm high and of base diameter 12 cm is surmounted by a cone 9 cm high. Find the total surface area of the pole.
$open parentheses bold Use bold space bold pi bold equals bold 22 over bold 7 close parentheses$

Solution

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Ans. 4352.2 cm²

Some More Questions From Statistics Chapter

A vessel is in the form of an inverted cone. Its height is 8 cm and the radius of its top, which is open, is 5 cm. It is filled with water up to the brim. When lead shots, each of which is a sphere of radius 0.5 cm are dropped into the vessel, one-fourth of the water flows out. Find the number of lead shots dropped in the vessel.

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