Find the sum of (c-4)+(3c+9)
1 answer:
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Answer:
27 : 8
Step-by-step explanation:
Given 2 similar figures with ratio of sides a : b, then
ratio of areas = a² : b² and
ratio of volumes = a³ : b³
Here the ratio of areas = 9 : 4, thus
ratio of sides = :
= 3 : 2
ratio of volumes = 3³ : 2³ = 27 : 8