Question

Use the diagram to answer the question

Answer 1

Step-by-step explanation:

$sin A = \frac{BC}{AC} \\ \\ \therefore \: sin A = \frac{13}{15} \\ \\ \therefore \: sin A = 0.866 \\ \\ \therefore \: sin A = sin \: 60 \degree \\ \\ \therefore \: A = \: 60 \degree$