Posted by boom on .
A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?

10th grade (geometry) 
drwls,
Please indicate subject, not grade level. That will help increase the chances that the appropriate teacher reads your question.
Because of similartriangle geometry rules, the ratio of shadow length to the height of the object casting the shadow is a constant. If the tree height is x,
25/x = 9/6
Solve for x. 
10th grade 
trips,
37.5

10th grade 
Mo,
Its 47 feet.

10th grade 
Anonymous,
what?

10th grade 
Shail,
25/9=x/6
...
(25*2)/3
=50/3
=16.666666..... feet! 
10th grade 
Shail,
The ques tion is wrong...
it ain't 26/x=9/6
its 25/9=x/6 
7th grade 
Andrew,
37.5

10th grade 
Joyce,
A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?
25/x = 9/6 (where 25 is the tree's shadow, x is the unknown height of the tree, 9 is the man's shadow and 6 is the man's height)
solve for x
cross multiply 25(6) = (9)x
150 = 9x
x = 150/9
do the division
x = 16.6
the tree is 16.6 feet or about 17 feet tall 
10th grade 
Anonymous,
A tree that is 100 feet tall casts a shadow that is 150 feet long. Determine the angle at which the rays of the sun hit the ground, to the nearest degree.

7th grade 
Emma,
9.75 feet

10th grade 
mary,
Math is shhhittt

10th grade 
nithya,
i want an answer of this...plz help me... a vertical stick of 30m long casts a shadow 15m long on the ground. at the same time a tower casts a shadow 75 m long on the ground. what is the height of the tower?

10th grade 
Riley,
a telephone pole casts a 36 foot shadow nearby a 6 foot man casts an 8 foot shadow how tall is the telephone pole

0th grade 
abc123,
??????

9th grade 
anonymous,
6/x = 9/25
9x = 150
x = 150/9
x = 16.666.../16.7/17 feet 
10th grade 
LANA DEL REY,
//DOWN ON THE WEST COAST/ THEY GOT A SAYING//

10th grade 
LANA DEL REY,
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