To "solve" a triangle means to find the unknown sides and angles. In this example, we need to find a and b and angle B. Note C = 90°.

We have

`sin\ 35^"o"=a/c=a/15.67`

So a = 15.67 sin 35° = 8.99

`cos\ 35^"o"=b/c=b/15.67`

So b = 15.67 cos 35° = 12.84

Angle B = 90° - 35° = 55°.

So a = 8.99, b = 12.84 and B = 55°. We have found all the unknowns.

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