A sphere with diameter 4 cm is melted into a cone of base radius 4 cm. Find the height and slant height of the cone.
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Answer:
Volume of sphere=volume of cone
4/3πr³=1/3πr²h
4/3×22/7×2×2×2=1/3 × 22/7 ×4×4×h.......... r=d/2=4/2=2
h=21
l(slant height) =√h²+r²
=√21²+4²
=√441+16
=√457
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