Question

the volume of the right circular cone is 9856 cm cube if the diameter of the base is 28 cm find the height of the com second slant height of the cone curved surface area of the cone​

Answer 1

Answer:

Step-by-step explanation:

Given:

r=  

2

28

​  

=14cm

(i)Let height =h

⇒Volume =9856=  

3

1

​  

πr  

2

h

9856=  

3

1

​  

×  

7

22

​  

×14×14×h

⇒h=48cm

(ii)⇒Slant height =  

r  

2

+h  

2

 

​  

=  

14  

2

+48  

2

 

​  

=  

196+2340

​  

=50cm

(iii)⇒Curved Surface Area =πrl=  

7

22

​  

×14×50cm  

2

 

=22004cm  

2

Answer 2

Answer:

volume of cone=

$\frac{1}{3} \pi {r}^{2} h$