Question

XI-
AND
.. A frustum
with water.
frustum of a cone has its radii of 15cm and 7cm with a height of 6cm is complete
th water. find the volume of water and curved surface area of frusturm
lled
curved surface area of frusturm (Take a 3.14)
167​

Answer 1

Answer:

Step-by-step explanation:

volume---- 1/3 * pie * h ( r^2 + R^2+ rR)

1/3* 3.14 * 6 ( 49+ 225+105)

3.14*2 ( 379)

2380.12 cm^3

CSA= pie * l ( r +R)                          

l^2= (15-7)^2 + 6^2

= 64+36

= 100

=10

3.14 * 10 (7+6)

3.14*10 (13)

408.2 cm^2

Answer 2

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