Tuesday

October 21, 2014

October 21, 2014

Posted by **shannon** on Monday, February 28, 2011 at 12:39am.

Using ratios,

Tree height = T

15/66 = 6.33/T

15T = 512.73

T = 34.182

T = 34.182 when getting this answer from my question: to estimate the height of a tree, Dave stands in the shadow of the tree so that his shadow and the tree's shadow end at the same point. Dave is 6 feet 4 inches tall and his shadow is 15 feet long. If he is standing 66 feet away from the tree, what is the height of this tree? why was it 6.33/T (where did that come from?)

- geometrY -
**Helper**, Monday, February 28, 2011 at 12:47pmShannon, I'm very sorry. The set-up is wrong (1st line), but the rest is correct. I have no idea where I got that first line.

http://member.tripod.com/~BDaugherty/GCSEMaths/shapes.html

In the picture, the ratio is

T/30 = 2/3

3T = 60

T = 20

Your problem, with the corrected first line is

Using ratios,

Tree height = T

T/81 = 6.33/15

15T = 512.73

T = 34.182

**Answer this Question**

**Related Questions**

geometry - not sure if youll understand but ill try and explain the picture is a...

geometry - can someone please show me the answer for this problem ? a tree is ...

math - You are designing a web page for you school's biology club. You want to ...

sciense - i want to see if thers a web site wer you could see the moons face ...

Geometry - Using your calculateor, look at the successive ratios (of the ...

math plz help - please can someone help me do this problem. atleast help me find...

space - You are designing a web page for your school's biology club. You want ...

operating system - Given that main memory is composed of three page frames for ...

geometry - Pine Tree In order to estimate the height h of a tall pine tree, a ...

Geometry - I've been working forever to figure out this problem! If two ...