Question

The top is shaped like a cone surmounted by a hemisphere the entire top is 5 cm in height and the diameter of the top is 3.5 cm find the tsa of top

Answer 1

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Answer 2

Step-by-step explanation:

Given

Surface area =πrl+2πr

2

Here r=

2

3.5

=1.75cm

l=

(3.25)

2

+(1.75)

2

=

13.625

l=3.6912cm

So, Area he has to color =

7

22

(1.75)(3.6912)+2×

7

22

(1.75)

2

=20.3016+19.25

=39.5516cm

2

Answer