Since the diameter is 6 cm, the radius is 3 cm. Use the area formula to get 113.04 cm squared. Then, you multiply that by the height of the rod, which is 20 cm. The volume of one rod is 2260.8 cm cubed. To find how much steel is needed for 189 rods, multiple the volume of one rod by 189. Your answer should be 427291.2 cm³.
Hi!
We can set up a proportion then cross multiply to solve this.

45 x 100 = 4500
4500/18 = 250
The answer is 250
Hope this helps! :)
Answer:
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Step-by-step explanation:
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Answer:
you don't know how to take proper pics..
you looks a little boring..
and maybe intelligent..
and can't tell more since it's not very clear
Answer:
9 and 1/2
Step-by-step explanation: