## Trigonometry (11th Edition) Clone

Since $b \gt a$, the angle which subtends $b$ must be larger than the angle which subtends $a$. However, then the sum of $A$ and $B$ is greater than $180^{\circ}$, so no triangle exists satisfying the given values.
$A = 140^{\circ}$ $a = 5$ $b = 7$ Since $b \gt a$, the angle which subtends $b$ must be larger than the angle which subtends $a$. That is: $B \gt A$. However, then the sum of $A$ and $B$ is greater than $180^{\circ}$, so no triangle exists satisfying the given values.