Question

In triangle ABC, ACB = 67°, AB= 6.9 cm and

BC = 5.7 cm.
a Calculate angle BÂC.

b Hence find the area of AABC.

Please answer all questions to 3 correct sig figs.

Answer 1

In triangle ABC, ACB = 67°, AB= 6.9 cm and BC = 5.7 cm.

Explanation: