Let's do this question the outer and inner diameters of a spiritual shell are 20 centimeter and 10 centimeter
respectively, find the volume of the metal contained in the shell was the video.
Give it a try and then let's do it together.
All right.
We are back.
Let's do it together.
Over here.
You have a spiritual shell, right?
And it's given that the two diameters are 20 centimeter and 10 centimeter.
Now, we know that the volume of the metal that's this part over here is given by four, by three by
our cube, minus four by three by our cube, because this part over here is hollow and that is equal
to or by three by ten cubed minus five cube.
Right.
Because over here the diameter is 20 to the radius will be 10.
Over here the diameter is 10.
So the radius will be fine.
So that's how you get ten and five over here.
And this simplifies two or three pi into eight hundred and seventy five.
Let's try to simplify that.
OK, so that's four by three into 22 by seven into eight, seven five, that's equal to four by three
into twenty two into one twenty five, OK, and that's equal to one one zero zero zero centimetre two
by three.
So this is what you get over here on simplifying this part.
That is your answer.