Peter bought a new graduated cylinder for his chemistry class. It holds 490 mL of liquid. If the cylinder has a radius of 3.5 cm, then how tall is the cylinder?
"r=3.5cm,"
Volume of cylinder"=490ml=490cm^3"
"\\Rightarrow \\pi r^2h=490"
"\\Rightarrow h=\\dfrac{490}{(3.5)^2\\times 3.14}=12.73cm"
Hence The cylinder must be 12.73 cm tall to hold 490 ml of liquid.
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