A pupil records $BC=5$ cm, $AC=8$ cm and $\angle BAC=50^\circ$ for triangle $ABC$. Use the s

Question

A pupil records $BC=5$ cm, $AC=8$ cm and $\angle BAC=50^\circ$ for triangle $ABC$. Use the sine rule to explain why these measurements cannot all be correct.[3]

Accepted Answer

No triangle: the sine rule would require $\sin B>1$.

Impossible triangle data

Impossible triangle data

Solution:

Solution locked