SOLUTION: 1. A liquid is sold in plastic bottles of two sizes. The two bottles are exactly similar in shape. The heights are 13 cm and 39 cm. (a) Find the ratio in the form 1: n of the

Algebra ->  Surface-area -> SOLUTION: 1. A liquid is sold in plastic bottles of two sizes. The two bottles are exactly similar in shape. The heights are 13 cm and 39 cm. (a) Find the ratio in the form 1: n of the      Log On


   



Question 1184317: 1. A liquid is sold in plastic bottles of two sizes. The two bottles are exactly similar in
shape. The heights are 13 cm and 39 cm.
(a) Find the ratio in the form
1: n
of the areas of the plastic used to make the two
bottles. [3]
(b) The smaller bottle holds 250ml. Calculate the volume that the larger bottle holds.
[3]
(c) Define congruency and give a clear, practical example. [4]

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

The ratio of linear dimensions is 1:3;

the ratio of surface areas is 1:9;

the ratio of volumes is 1:27.


You do the rest.