Question

A glass in the shape of frustum of cone whose height =12cm.The diameter of its two circular ends are 6cm & 4cm.Find the capacity of the glass.plzzzzzzz plzzzz answer it.Its too urgent

Answer 1

Answer: 102 2/3

Step-by-step explanation:

Given:

Upper base diameter, D =4 cm

Lower base diameter, d =2cm

Height, h =14 cm

So, R (upper base) =2 cm,

r(lower =1cm

Capacity of glass = Volume of frustum of cone

=

3

πh

​

[R

2

+Rr+r

2

]

=

3

π×14

​

[2

2

+2×1+1

2

]

=

3×7

22×14[4+1+2]

​

=

3

308

​

=102

3

2

​

cm

3

So, the capacity of the glass is 102

3

2

​

cm

3