Makasih, sama-sama....
Teorema pythagoras
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80 : x = √2 : 1
80/x = √2/1
x√2 = 80
x = 80/√2 × √2/√2
x = 80√2/2
x = 40√2 (Opsi A)
Jawaban:
A. 40√2
Penjelasan dengan langkah-langkah:
Pakai Theorema Pitagoras
[tex] {80}^{2} = {x}^{2} + {x}^{2} \\ 6400= {2x}^{2} \\ {x}^{2} = \frac{6400}{2} \\ {x}^{2} = 3200 \\ x = \sqrt{3200} \\ x = \sqrt{1600 } \times \sqrt{2} \\ = 40 \sqrt{2} [/tex]
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