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siku-siku di P, besar  dan panjang , hitung panjan...

begin mathsize 14px style increment P Q R end style siku-siku di P, besar begin mathsize 14px style angle R equals 60 to the power of o end style dan panjang begin mathsize 14px style P Q equals 12 square root of 3 cm end style, hitung panjang PR.

Jawaban:

begin mathsize 14px style tan 60 to the power of straight o equals PQ over PR space space space space space square root of 3 equals fraction numerator 12 square root of 3 over denominator PR end fraction space space space space space space PR equals fraction numerator 12 square root of 3 over denominator square root of 3 end fraction space space space space space space PR equals 12 space cm end style 

Jadi, panjang begin mathsize 14px style PR equals 12 cm end style.

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