Question

9
${9\pi ^{2} } \div \sqrt{3\pi}$
​

Answer 1

One specific toy is in the shape of a cone mounted on a cylinder. The total height of the toy is 110 mm and the height of its conical part is 77 mm. The diameters of the base of the conical part is 72 mm and that of the cylindrical part is 40 mm.

(iii) How much of the wood have been used in making the toy ? (a) 56824 pi mm3 (b) 46464 pi mm3 (c) 84424 pi mm3 (d) 64684 pi mm3