Construct Geometric Shapes With Conditions Practice Test

Which set of conditions would allow a student to construct infinitely many different triangles (all with the same shape but different sizes)?

A student is told to construct $\triangle PQR$ where $PQ=4\text{ cm}$, $PR=5\text{ cm}$, and the included angle $\angle QPR=70^\circ$. How many different triangles are possible with these conditions (up to flipping/rotation)?