28 To measure the distance through a mountain for a proposed tunnel,
surveyors chose points A and B at each end of the proposed tunnel and
a point C near the mountain. They determined that AC = 3,800 meters,
BC = 2,900 meters, and m∠ACB = 110. Draw a diagram to illustrate
this situation and find the length of the tunnel, to the nearest meter.
[12]
Math. B – Jan. ’05