# Park

In the park is marked diamond shaped line connecting locations A, D, S, C, B, A. Calculate its length if |AB| = 108 m, |AC| = 172.8 m.

Correct result:

x =  475.2 m

#### Solution:

$x=3 \cdot \ 108+172.8/2+\sqrt{ 4 \cdot \ 108^{ 2 }-172.8^{ 2 } }/2=\dfrac{ 2376 }{ 5 }=475.2 \ \text{m}$

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