SOLUTION: To determine the width of a chasm, a marker (A) is placed directly opposite a rock (R) on the other side. Point B is placed 3 m away from point A, as shown. Marker C is placed 3 m

Question 1044773: To determine the width of a chasm, a marker (A) is placed directly opposite a rock (R) on the other side. Point B is placed 3 m away from point A, as shown. Marker C is placed 3 m along the edge of the chasm, and marker D is placed so that BD is parallel to AC. Markers C and D and the rock are collinear (i.e. lie in a straight line). If BD measures 5 m, find the width of the chasm (AR).
http://imgur.com/a/UAxTy
Please show all working. Thank you!
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
triangles and are similar; so, corresponding sides are proportional
than we have:
......since is parallel to , and we will have

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