a toy is in the former of a cone mounted on a hemisphere the diameter of the base and the height of the cone are 8 cm and 3 cm respectively determine the surface area of the toy
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Answer:
surface area of the toy =113.12
Step-by-step explanation:
It is given that
Radius = 4cm
height of the cone = 3cm
By pythagoras theoram ,
slant height of the cone = 5cm
• Surface area of the toy = C.S.A. of the cone + C.S.A of the hemisphere
=> πrl + 2πr^2
=> πr (l + 2r)
=> (22➗7 )✖4 (5+ 4)
=> (88➗7)(9)
=> 792➗7
=> 113.12 square cm
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