Question: In triangle ABC, AB=4, AC=5, and the radius R of the circumscribed circle is equal to √7. Find all possible values of the area of triangle ABC.
Through using the sine rule, i found the angle of B to be approximately 70.89339, the angle of C to be approximately 49.10661 and the angle of A to be 60. Using the cosine law, I found the missing side length BC to be √21. Using Heron's law, I then found the area to be 5√3.
However, this question requires more than one area. I am confused as to how to obtain the second area?
No comments:
Post a Comment