In triangle $ABC$, $BC=12$ cm, $\angle BAC=110^\circ$ and $\angle ABC=35^\circ$. Calculate \

Question

In triangle $ABC$, $BC=12$ cm, $\angle BAC=110^\circ$ and $\angle ABC=35^\circ$. Calculate $AC$, correct to 3 significant figures.[3] Explain why your answer should be less than 12 cm.[1]

Accepted Answer

(a) $7.32$ cm (b) It is opposite the smaller angle.

A side opposite an acute angle

A side opposite an acute angle

Solution:

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