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please help !!! picture is as follows :) ......... A conical cup is made from a circular piece of paper with radius 8 cm by

please help !!! picture is as follows :) .........

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A conical cup is made from a circular piece of paper with radius 8 cm by cutting out a sector and joining the edges as shown below. Suppose 6 = 771/4. 8cm 8cm 8cm (a) Find the circumference C of the opening of the cup. C= 16w X cm (b) Find the radius r of the opening of the cup. [Hint: Use C = 27m] I'= Cm (c) Find the height h of the cup. [Hint: Use the Pythagorean Theorem.] h= cm (d) Find the volume V of the cup. V = cm3

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