Question

Please help fast! C=?

Answer 1

Explanation:

By the law of Sines,

`(\sin 88^(\circ))/(26)=(\sin C)/(21)\\\sin C=(21 \sin 88^(\circ))/(26)\\C=\sin^(-1) \left((21 \sin 88^(\circ))/(26) \right) \approx 54^(\circ)`

However, it follows that
`C \approx 126^(\circ)` must also be a solution.