What is the law of sines?

a/sin(A) = b/sin(B) = c/sin(C). It relates sides to opposite angles in any triangle.

Which inputs do I need?

Either two angles and one side (AAS/ASA), or two sides and one non-included angle (SSA). We solve for the rest.

Solve triangle using law of sines: two angles and a side, or two sides and a non-included angle. a/sin(A) = b/sin(B) = c/sin(C).

Angle A (degrees)

Angle B (degrees)

Side a (opposite A)

Side b (optional)

What is the law of sines?: a/sin(A) = b/sin(B) = c/sin(C). It relates sides to opposite angles in any triangle.
Which inputs do I need?: Either two angles and one side (AAS/ASA), or two sides and one non-included angle (SSA). We solve for the rest.

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