cos∠CAD=b/AD=8/(16√3/3)=√3/2
∠CAD=30°
AD是∠A的平分线
∠A=2∠CAD=60°
∠B=90°-∠A=30°
a=b×tan(∠A)=8×tan60°=8√3/3
c=b/sin(∠B)=8/sin30°=16
cos∠CAD=b/AD=8/(16√3/3)=√3/2
∠CAD=30°
AD是∠A的平分线
∠A=2∠CAD=60°
∠B=90°-∠A=30°
a=b×tan(∠A)=8×tan60°=8√3/3
c=b/sin(∠B)=8/sin30°=16