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#1 2012-10-26 07:51:46

zee-f
Member
Registered: 2011-05-12
Posts: 1,220

Triangles

Hi guys smile !

I really need help answering and seeing if I answered this question correct.

A 12-foot ladder is leaning across a fence and is touching a higher wall located 3 feet behind the fence. The ladder makes an angle of 60 degrees with the ground. Find the distance from the base of the ladder to the bottom of the fence.

The distance from the base of the ladder to the bottom of the fence is going to be
12 * √3 = 12√3


One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

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#2 2012-10-26 08:05:36

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,714

Re: Triangles

Hi;

That is not possible. You have the base of the triangle longer than the hypotenuse which is always the longest side of a right triangle.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#3 2012-10-26 08:53:23

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,466

Re: Triangles

hi zee-f

This is the diagram I'm getting.

ladder = AD
fence = BE
wall = DE


Bob

View Image: zeef triangle.gif

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#4 2012-10-26 09:08:24

zee-f
Member
Registered: 2011-05-12
Posts: 1,220

Re: Triangles

OK so I am going to say 12 is the hypotenuse so to get the short side I divide 12 by 2 sense the hypotenuse is the short leg * 2 and I get 6 and the long leg is going to be 6* √3 = 6√3

and to get the distance from the base of the ladder to the bottom of the fence 6 - 3 = 3
So 3ft is the answer


One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

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#5 2012-10-26 09:13:08

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,466

Re: Triangles

That works for me.  smile

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#6 2012-10-26 09:15:40

zee-f
Member
Registered: 2011-05-12
Posts: 1,220

Re: Triangles

Thank big_smile


One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

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#7 2012-10-26 09:23:19

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,714

Re: Triangles

Hi;

I hope that you are drawing a diagram whenever one of these geometry problems come up.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

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