prove that when the triangles are similar then the ratio of their corresponding side is equal to to ratio of their corresponding median

The proof is given below.

Step-by-step explanation:

Let the two similar triangles ABC and DEF in which AP and DQ are the medians respectively.

we have to prove that the ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding medians.

If ΔABC~ΔDEF

⇒   →   (1)

As ΔABC~ΔDEF

Hence,

In ΔABP and ΔDEQ

∠B=∠E   (∵ΔABC~ΔDEF)

By SAS rule, ΔABP~ΔDEQ

⇒

Squaring, we get

   →  (2)

Comparing (1) and (2), we get

Hence, the ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding medians.

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