Road

The angle of a straight road is approximately 12 degrees. Determine the percentage of this road.

Correct result:

p =  21.3 %

Solution:

tan⁡(12∘)=a/b p=100 a/b p=100⋅ tan⁡(12∘)=21.3%\tan(12^\circ )=a/b \ \\ p=100 \ a/b \ \\ p=100 \cdot \ \tan( 12^\circ )=21.3 \%

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