The Student Room Group
Reply 1
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Reply 2
ive bin told to get the ratios so:
area = 4.8:10.8 = 2.4:5.4 = 1:2.25
length therefore = root 1: root 2.25 = 1:1.5
therefore 3*1.5 = 4.5
think the ratio must be shown to get method marks
Reply 3
yer ty for the help but i already got2 minutes after this post, you had to sqare root the surface area then x it by 3 to get 4.5.

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