Step-by-step explanation:
total volume = volume of cone + volume of hemisphere
= 2/3πr³+1/3πr²h
= πr²(2/3r+1/3h)
=22/7×3.5×3.5(2/3×3.5+1/3×7)
=38.5[1/3(7+7)]
=38.5×14/3
=539/3
=179.67 cm² (approx)
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Answers & Comments
Step-by-step explanation:
total volume = volume of cone + volume of hemisphere
= 2/3πr³+1/3πr²h
= πr²(2/3r+1/3h)
=22/7×3.5×3.5(2/3×3.5+1/3×7)
=38.5[1/3(7+7)]
=38.5×14/3
=539/3
=179.67 cm² (approx)