#Masterpiece: What you would do with all the time and money in the world

#Masterpiece: What you would do with all the time and money in the world

Matematika Diketahui segitiga abc siku siku di a. Jika panjang ab=18 cm dan bc=20 cm, nilai cos⟨c.

Diketahui segitiga abc siku siku di a. Jika panjang ab=18 cm dan bc=20 cm, nilai cos⟨c.

Penjelasan dengan langkah-langkah:

AB = 18

BC = 20

AC² = BC² - AB²

AC² = 20² - 18²

AC² = 76

AC = 2 akar 19

cos c = AC/BC

[tex] \frac{2 \sqrt{19} }{20} = \frac{ \sqrt{19} }{20} [/tex]

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