# Similarity

The area of the regular 10-gon is 563 cm2. The area of similar 10-gon is 606 dm2.

What is the coefficient of similarity.

Result

k =  12.98

#### Solution:

$k = \sqrt{ \dfrac{ S_2}{ S_1}} = \sqrt{ \dfrac{ 100 \cdot 949}{ 563}} = 12.98$

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