Question

if the diameter of the base of a solid hemisphere is X unit then the area of whole surface of the hemisphere is​

Answer 1

Answer: diameter=9

Step-by-step explanation:

Volume (Hemisphere)=  

3

2

​  

πr  

3

 

Surface area=3πr  

2

 

∴3πr  

2

=  

3

2

​  

πr  

3

 

⇒r=  

2

9

​  

 

⇒2r=9

⇒d=9.