Question

At a certain time of day, a 5.5 foot tall man has a 6 foot shadow. If a tree is 19 feet tall, what is the length of the shadow of the tree?

Answer 1

These are similar triangles...so the lengths a proportional

\[\frac{ 19 }{ 5.5 } = \frac{ x }{ 6 }\]

And solve for 'x'

Answer 2

So, 19.86 right?

Answer 3

Not quite what I get

Answer 4

No, 20.45.

Answer 5

You would multiply both sides by 6 to isolate 'x'

so

6 times 19
-----------
5.5

Answer 6

Oh crap, my bad. I put 5.4 into the calculator.

Answer 7

Its 20.73

Answer 8

There you go man

Answer 9

Thanks for the help!

Answer 10

no problem