Use sin because in relation to angle F, side 12 is the opposite and side 17 is the hypotenuse (soh-cah-toa) so that's why the answer is 45°
Answer:
A
Step-by-step explanation:
Calculate ∠F using the sine ratio
sinF = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{BC}{CF}[/tex] = [tex]\frac{12}{17}[/tex]
F = [tex]sin^{-1}[/tex] ([tex]\frac{12}{17}[/tex] ) ≈ 45° → A
