Contents
Sine Rule
Solution of Triangle (Sine)
Cosine Rule
Solution of Triangle (Cosine)
Quiz
Trigonometry Main Page
Sine & Cosine Rule
In the diagram, ÐBAC = 54°, ÐDAE = 38°, ÐAED = 47°, AB = 4.2 cm, AC = 3.6 cm, CD = 5.5 cm and AD = 8 cm. Calculate
(a) ÐACD
(b) DE
(c) the area of triangle ABC
Answers
In
the diagram, ÐBAC = 54°, ÐDAE = 38°,
ÐAED = 47°, AB = 4.2 cm, AC = 3.6 cm, CD =
5.5 cm and AD = 8 cm. Calculate
