Question 4

A car's engine has 6 cylinders, each of diameter 9.6 cm and height 10.4 cm. Find the capacity of the engine's cylinders in cc (cubic centimetres).

A rectangular swimming pool's depth is 1 m at the shallow end and gradually increases to 4 m at the deep end, as shown in the following diagram.
http://www.mathsteacher.com.au/year10/ch14_measurement/30_problem_solving_unit/Image5572.gif

Calculate:
a. the cost of painting the pool at $5 per square metre
b. the amount of water (measured in litres) required to fill the pool

Question

Question 4

A car's engine has 6 cylinders, each of diameter 9.6 cm and height 10.4 cm. Find the capacity of the engine's cylinders in cc (cubic centimetres).



A rectangular swimming pool's depth is 1 m at the shallow end and gradually increases to 4 m at the deep end, as shown in the following diagram.
http://www.mathsteacher.com.au/year10/ch14_measurement/30_problem_solving_unit/Image5572.gif

Calculate:
a.  the cost of painting the pool at $5 per square metre
b.  the amount of water (measured in litres) required to fill the pool

hartnn · Answer

asked 5 days ago!!

cwrw238 · Answer

capacity of each cylinder = pi*r^2*h     (r=radius,h=height)

anonymous · Answer

Yes, it was asked then but not answered :) Thanks cwrw238

hartnn · Answer

i m sure cwrw238 will help u with 2nd question also.....by the way,now could u solve the 1st one?

wwe123 · Answer

6*(pi*r^2*h)
6*(22/7)*4.8^2*10.4
4518*10^6

wwe123 · Answer

4518*10^6 cc

wwe123 · Answer

total area =1*12+4*12+2[(1/2)*32(1+4)]=220
(a)  220*5=1100
(b)  find volume