2013 · Q85
ABC is a triangle where BC = 2AB, ∠C = 30° and ∠A = 90°. The magnitude of side AC is
Elementary MathematicsTrigonometry
- A2BC/3
- B3BC/4
- CBC/√3
- D√3BC/2
Explanation
AC=BC×cos30=√3BC/2. Answer D.
ABC is a triangle where BC = 2AB, ∠C = 30° and ∠A = 90°. The magnitude of side AC is
Explanation
AC=BC×cos30=√3BC/2. Answer D.