Mathematics
The approximate volume of a human eye is 6.5 cm3. The volume of a laboratory model (excluding base and stand) of the human eye is 1404 cm3.
(a) State whether the scale factor k is less than, equals to or greater than 1.
(b) Calculate the:
(i) value of k
(ii) diameter of the human eye if the radius of the model is 7.2 cm.
(iii) the external surface area of the human eye if the surface area of the model is 651.6 cm2.
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