Question

take 10 objects from your house and measure theït dimensions and find their volume curved surface area and total surface area
please tell me fast who one reply the correct I am given him brilliant mark​

Answer 1

Answer: The below is the answer

Step-by-step explanation: Solution

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Given :

h=6 cm

l=10 cm,

π=3.14

To find out the Radius of the given cone :

By using Pythagoras theorem in ΔOBA we get,

OB=  

(100)  

2

−36

​

 

⇒OB=8 cm=r

Volume of cone =  

3

1

​

πr  

2

h

=  

3

1

​

×3.14×(8)  

2

×6

∴Volume =401.92 cm  

3

 

Now,

The total surface area of the cone =πrl+πr  

2

 

=πr(l+r)=3.14

T.S.A=452.16 cm  

2