In a right triangle, sin(45°) = ? A 1 B 1/2 C √2/2 D √3/2 ✓ Correct Answer: Option C In a 45-45-90 triangle, sin(45°) = opposite/hypotenuse = 1/√2 = √2/2 ≈ 0.707. Practice SAT Exam Prep Quizzes → Browse All Questions Study Flashcards