A hollow steel tube, 4 m long, has walls 5 mm thick and is open at each end. if the outer diameter is 41 cm, what's the inner diameter?
first convert 5 mm to cm
recall that 10 mm = 1 cm
thus 5 mm = 1/2 cm = 0.5 cm
then we subtract the thickness by the outer diameter:
41 - 2*0.5
41 - 1 = 40 cm
hope this helps~ :)
thanks, it helped a lot
Work out area and diameter and volume if circumference is 16cm and height 2cm
To find the inner diameter of the hollow steel tube, we need to subtract twice the wall thickness from the outer diameter.
Given:
Length of the tube (L) = 4 m
Wall thickness (t) = 5 mm = 0.005 m
Outer diameter (D) = 41 cm = 0.41 m
The inner diameter (d) can be calculated as follows:
d = D - 2t
Substituting the values:
d = 0.41 m - 2(0.005 m)
Now we can calculate the inner diameter by performing the arithmetic operation:
d = 0.41 m - 0.01 m
Finally, we find:
d = 0.4 m
Therefore, the inner diameter of the hollow steel tube is 0.4 meters.