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31° 42' × 3. 28° 34' ×5

Răspuns :

[tex]31^{\circ}42'\cdot3=93^{\circ}126'=95^{\circ}6'[/tex]




[tex]28^{\circ}34'\cdot5=490^{\circ}170'=492^{\circ}50'[/tex]