In geometry what principle is used to solve the following problem? a ladder 15 feet long leans against as wall and forms an angle of 45 degrees with the ground .How far from the wall is the ladder? Could I use Pythagoras?

Question

anonymous · Answer

yes

anonymous · Answer

yes,you can..

directrix · Answer

You can also use the 45-45-90 theorem which is based on the Pythagorean Theorem.

anonymous · Answer

probably best to use trig.

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anonymous · Answer

they only gave here the 15 feet long of the ladder

anonymous · Answer

it's confused me

anonymous · Answer

and the angle between the ladder and the ground

anonymous · Answer

then the answers is 63.82

anonymous · Answer

it is not. use trig.

h being the length of ladder and x being the angle in degrees

anonymous · Answer

I found out 27

anonymous · Answer

please help me this geometry is hard on me

littlebird · Answer

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wolf1728 · Answer

As Directrix said the easiest way is to use the theorem of the 45 45 90 triangle.
The hypotenuse length = side length * sqroot(2)
So you need to know the length of a side so the formula is
side = hypotenuse / sqroot(2)
side = 15 / 1.414
side = 10.607 and the side is the distance to the wall.

anonymous · Answer

yes thanks a lot I just realized