Using the disk method, the volume is obtained with the integral

The radius of each disk is given by the horizontal distance from the axis of revolution,
, to the logarithmic curve which we can write as a
:

Then the volume of one such disk is
.
The volume of the entire solid would be


Answer.if breadth is 1 then length is 38 cm
v= l×b×h
342=l×1×9
342=9l
l=342/9
l=38
9.25 I think. Multiply 5 by .3 and subtract that from 20. Divide what you get from the subtraction by 2
Step-by-step explanation:
the answer is 18 I think