# SSA ambiguous case

**Rotate the endpoints**of the 3 options for side a of this triangle to see the triangles that are possible with the given lengths. To

**change the lengths of side a or b**slide the a_1 or b_1 slider. To

**change the angle**move point C The length of a_0 is a critical length to determine whether one or two triangles can be formed.

**How can the length of a_0 be found?**How is this diagram calculating it?

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