Answer:

Given: Diameter of a hemisphere =7 cm

So, Radius =

2

7

=3.5 cm

∴ Height of the cone, h=14.5−3.5=11 cm

The volume of a toy = Volume of cone +Volume of a hemisphere

=

3

1

πr

2

h+

3

2

πr

3

=

3

1

πr

2

(h+2r)

=

3

1

×

7

22

×3.5×3.5(11+2×3.5)

=

3

1

×22×0.5×3.5×18

=231 cm

3

Answer:

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