SOLUTION: Brianna is 1.53 meters tall. One day, she casts a shadow that was 2.11 meters long. At the same time, a tree casts a shadow that was 8.7 meters long. Find the height of the tree in

Question 1162981: Brianna is 1.53 meters tall. One day, she casts a shadow that was 2.11 meters long. At the same time, a tree casts a shadow that was 8.7 meters long. Find the height of the tree in meters, to the nearest two decimal places.
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
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From the triangles similarity, use the proportion


     = .


From the proportion, find  x, the height of the tree.

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On proportions, see the lessons
    - Proportions
    - Using proportions to solve word problems
    - Using proportions to solve word problems in Physics
    - Using proportions to solve Chemistry problems
    - Typical problems on proportions
    - Using proportions to estimate the number of fish in a lake
    - HOW TO algebreze and solve these problems using proportions
    - Problems on proportions for mental solution
    - Selected problems on proportions from the archive
    - OVERVIEW of lessons on proportions
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