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  • If  ABC ~ <img alt="\small \Delta" src="https://learn.careers360.com/latex-image/?%5Cdpi%7B80%7D%20%5Cfn_jvn%20%5Csmal

If  \small \DeltaABC ~ \small \DeltaDEF such that AB = 1.2 cm and DE = 1.4 cm, the ratio of the areas of \small \DeltaABC and \small \DeltaDEF is  
Option: 1 49:36
Option: 2 6:7
Option: 3 7:6
Option: 4 36:49

Answers (1)

The ratio of areas of two similar triangles is equal to the ratio of the squares of any two corresponding sides.

Therefore the ratio of areas is 

\frac{area(\Delta ABC)}{area(\Delta DEF)}=(\frac{1.2}{1.4})^2=\frac{36}{49}

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Safeer PP

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