In triangle $ABC$, $BC=11$ cm, $AC=10$ cm and $\angle BAC=80^\circ$. Calculate the acute val

Question

In triangle $ABC$, $BC=11$ cm, $AC=10$ cm and $\angle BAC=80^\circ$. Calculate the acute value of $\angle ABC$, giving your answer correct to 1 decimal place. Explain whether a second triangle satisfying the given information is possible.

Accepted Answer

(a) $63.5^\circ$; (b) no second triangle is possible.

Sec 3/4 E Math T06-Q11 - Deciding whether a second triangle is possible

Sec 3/4 E Math T06-Q11 - Deciding whether a second triangle is possible

Solution:

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