Answer:
D
Step-by-step explanation:
b=13,∠C=90°,∠A=76°,∠B=90-76=14°
by sine formula
[tex]\frac{13}{sin ~14} =\frac{a}{sin~76} \\a=\frac{13 ~sin~76}{sin~14} \approx~52.14\\\approx~52.1[/tex]
