+129852 (3a) Plaster required =
(1/3) (area of base ) ( height) =
(1/3) (15^2) ( 12) =
4 * 225 =
900 cm^3
(3b) The scale factor of the prop is 3 times that of the model
So....the volume of the prop =
Volume of model * (scale factor)^3 =
900 * (3)^3 =
900 * 27 =
24,300 cm^3
(3c) The volume of the prop is 27 times that of the model = (scale factor)^3 = 3^3 = 27
I'll be so grateful if you answered all of these questions!
