SOLUTION: A student stands 29 m away from the foot of a tree and observes that the angle of elevation of the top of the tree, measured from a table 1.5m above the ground, is 38°28'. Calcula

Algebra ->  Trigonometry-basics -> SOLUTION: A student stands 29 m away from the foot of a tree and observes that the angle of elevation of the top of the tree, measured from a table 1.5m above the ground, is 38°28'. Calcula      Log On


   



Question 1183402: A student stands 29 m away from the foot of a tree and observes that the angle of elevation of the top of the tree, measured from a table 1.5m above the ground, is 38°28'. Calculate the height of the tree to the nearest meter
Found 3 solutions by Solver92311, mananth, ikleyn:
Answer by Solver92311(821) About Me  (Show Source):
You can put this solution on YOUR website!


Height of Tree

Hint: Your calculator may want you to enter the fractional part of a degree as a decimal. If so, then the decimal part of your angle is given by 28 divided by 60.

You can do your own arithmetic.


John

My calculator said it, I believe it, that settles it

From
I > Ø

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
.
tan 38 deg 28' = x/29
x= tan 38deg 28' *29
= 0.79 *29
x= 23 m
height of tree = 23 +1.5 =24.5 m

Answer by ikleyn(52814) About Me  (Show Source):
You can put this solution on YOUR website!
.
A student stands 29 m away from the foot of a tree and observes that the angle of elevation of the top of the tree,
measured from a highlight%28cross%28table%29%29 LEVEL 1.5m above the ground, is 38°28'. Calculate the height of the tree to the nearest meter
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            First, I edited the text to make it harmonious.
            Overwise,  an unnecessary questions may arise about the table . . . (which is,  actually,  irrelevant to the problem).


            Second,  I re-calculated everything and found out that the answer by @mananth is  INCORRECT  due to incorrect rounding.

            I present the corrected calculations below.


tan 38 deg 28' = x/29


x = tan 38deg 28' * 29 = 

  = 0.794485554 * 29 = 


x= 23.04008 m


height of the tree = 23.04008 + 1.5 = 24.504008 m = 25 m  (rounded as requested).        ANSWER

Solved (correctly).