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uysha [10]
1 year ago
11

Find the value of x.

Mathematics
1 answer:
Lina20 [59]1 year ago
4 0

Answer:

Hi,

Step-by-step explanation:

Using Al'Kashi theorem (law of cosines),

x²=26²+19²-2*26*19*cos(31°)

x²= 190,11870690...

So

x=\sqrt{190.11870690} =13,7883540...\approx{13.8}

I hope that this is not a control.

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