Question

7. Find the vertical height of a right circular cone whose redius is 6 cm and slant height is 10 an. Find the volume of a richt circular vinner having radius 8 cm and height 10-5 am. Take 1 = Take - 22 8​

Answer 1

Answer:

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

Step-by-step explanation:

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