Page 3 - WS2

Viva Voce

Question 1:
What is the relation between slant height and base radius of a cone ?
Answer:
, l= slant height, r— radius of cone, h = height of cone.

Question 2:
What is the lateral surface area of a cone ?
Answer:
. l= slant height, r— radius of base.

Question 3:
What is the total surface area of a cone ?
Answer:
\pi r(l+r) . l= slant height, r= radius of base.

Question 4:
How many circular faces are there in a solid cone ?
Answer:
One.

Question 5:
Number of vertex of a cone is
Answer:
One.

Question 6:
Find slant height of a cone of base radius 3 cm and height 4 cm.
Answer:
5 cm.