Exam-Style Question on Trigonometry
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 361. This question is similar to one that appeared on an IB Standard paper in 2018. The use of a calculator is allowed.
The diagram, not drawn to scale, shows a quadrilateral ABCD.
AB = 7.5cm, BC = 3.6cm, angle DAB = 98o, angle DBA = 49o and angle DBC = 80o
(a) Find DB
(b) Find DC
(c) The area of triangle ABD
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