Exam-Style Question on Trigonometry
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 101. This question is similar to one that appeared on an IB Studies paper in 2014. The use of a calculator is allowed.
ABC is a triangular car park on horizontal ground. The length of AB is 90m and the length of AC is 65m. The size of angle BCA is 68o.
(a) Find the size of angle ABC.
(b) Find the area of the triangular car park.
M is the midpoint of AC.
(c) Find the length of BM.
A vertical flag pole, FB, is erected in one corner of the car park with its base at B.
The angle of elevation of F from M is 55.3o. H is the midpoint of the flag pole.
(d) Calculate the angle of elevation of H from M.
The worked solutions to these exam-style questions are only available to those who have a Transum Subscription.
Subscribers can drag down the panel to reveal the solution line by line. This is a very helpful strategy for the student who does not know how to do the question but given a clue, a peep at the beginnings of a method, they may be able to make progress themselves.
This could be a great resource for a teacher using a projector or for a parent helping their child work through the solution to this question. The worked solutions also contain screen shots (where needed) of the step by step calculator procedures.
A subscription also opens up the answers to all of the other online exercises, puzzles and lesson starters on Transum Mathematics and provides an ad-free browsing experience.
Drag this panel down to reveal the solution
©1997 - 2020 Transum Mathematics :: For more exam-style questions and worked solutions go to Transum.org/Maths/Exam/