A carpenter makes a letter-box which has a volume of 11200 cm³. The base has an area of
560 cm². What is the height of the letter-box?
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20 is the height of letter box
Step-by-step explanation:
Volume of letter box = 11200cm³
Area of Base = πr²
= 560 cm²
Volume of letter box = πr²h
11200 = 560× h (πr² is area of Base which is 560)
11200/560 = h
20 = h
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