A bridge 100m long is to be built to span a valley as shown. From point a, the angle of depression is 40° and from point b the angle of depression is 71° if a supporting pier is to be constructed (x) find its height to the nearest tenth of a metre
3 answers
are you the person that did the measurement unit test part one ????????
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no diagrams here. You will have to do better describing the relevant points, angles and distances