Asked by Rhoda

A flat rectangular roof measures 7.5m by 4m,12mm of rain falls on the roof.
(a)find the volume of water on the roof.express your answer in centi-cubic metre and cubic metre.
(b)find the mass of water that falls on the roof if 1centi-cubic metre of water has a mass of 1gram.express your answer in kilogram
Answered by henry2,
a. V = L*W*h = 750*400*1.2 = 360,000 cm^3.
V = 7.5*4*0.012 = ___ m^3.

b. 1g/cm^3 * 360,000cm^3 = ___ grams = ___ kg.
Answered by Esther
Excellent answer, well-done
Answered by Adedeji damilola
The working but a great work
Answered by Anonymous
i don't understand
Answered by Favour
i don't understand sorry for the first post


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