2013 · Q71
In triangle ABC, ∠B=90° and ∠C=2∠A, then AB² equals
Elementary MathematicsTrigonometry
- A2BC²
- B3BC²
- C4BC²
- D5BC²
Explanation
A=30°; AB=BC×√3 → AB²=3BC². Answer B.
In triangle ABC, ∠B=90° and ∠C=2∠A, then AB² equals
Explanation
A=30°; AB=BC×√3 → AB²=3BC². Answer B.