Question

A playing top is made up of steel The top is shaped like a cone surmounted a hemisphere. The total height of the top is 14.5cm and the diameter of the top is 7cm. find the volume of the top ​

Answer 1

Answer:

Step-by-step explanation:

• Cone having height = h, radius = r and slant height = l

(a) Volume of cone =

1 2

3

πr h

(b) Curved surface area of cone = πrl

SURFACE AREAS AND VOLUMES

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(c) Total surface area of cone = πr (l + r)

(d) Slant height of cone (l) = 2 2 h r

Answer 2

Answer:

Step-by-step explanation

r = 7 h = 7.5 cm

Volume of toy = Volume of cone + Volume of hemisphere

= 1/3 π r² h + 2/3 π r³

= 1/3 π r² ( h + 2r )

= 1102.62 cm³