Problem with hypotenese Length

[Pin Head]

sideA = adjacent
sideB = opposite
sideC = hypotenese

Find Angle

angle = inverse tan = sideA / sideB

Find side

find the X component
sideC = cos( angle ) * sideA

find the Y Component
sideC = sin( angle ) * sideB

So my question is is how or why is my hypotenese line being displayed shorter than

 

[berkeman]

sideA = adjacent
sideB = opposite
sideC = hypotenese

Find Angle

angle = inverse tan = sideA / sideB

Find side

find the X component
sideC = cos( angle ) * sideA

find the Y Component
sideC = sin( angle ) * sideB

So my question is is how or why is my hypotenese line being displayed shorter than

Your definitions of the angle and the cos() and sin() are wrong.

Try again?

 

[Pin Head]

sideA = adjacent
sideB = opposite
sideC = hypotenese

Find Angle

angle = inverse tan = sideB / sideA

Find side

find the X component
sideC = sideA / cos( angle )

find the Y Component
sideC = sideB / sin( angle )


I think I got the formula wrote the wrong way but now my Image looks like this

 

[berkeman]

sideA = adjacent
sideB = opposite
sideC = hypotenese

Find Angle

angle = inverse tan = sideB / sideA

Find side

find the X component
sideC = sideA / cos( angle )

find the Y Component
sideC = sideB / sin( angle )


I think I got the formula wrote the wrong way but now my Image looks like this

Your equations look correct now. How are you generating the figure?

 

[Pin Head]

Hi,
I don't no what you mean by figure?
but here is what I have done

sideA = x2 - x1 which equals 200pixels
sideB = y2 - y1 which equals -200pixels

angle = inverse tan = sideB / sideA

angle is -0.7853981633974483 in radians

find the X component
sideC = sideA / cos( angle )
sideC equals 282.84271247461896

find the Y Component
sideC = sideB / sin( angle )
sideC equals 282.842712474619

 

[berkeman]

Hi,
I don't no what you mean by figure?
but here is what I have done

sideA = x2 - x1 which equals 200pixels
sideB = y2 - y1 which equals -200pixels

angle = inverse tan = sideB / sideA

angle is -0.7853981633974483 in radians

find the X component
sideC = sideA / cos( angle )
sideC equals 282.84271247461896

find the Y Component
sideC = sideB / sin( angle )
sideC equals 282.842712474619

Why is sideB negative in length?

(the figure I refer to is your drawing of the triange)

 

[Pin Head]

hi,
because in Java programming the x coordinates travel across the screen and the y coordinates travel down the screen so when I use the formula y2 - y1 then we are travelling
up the screen which gives us negative 200

 

[Whovian]

There's a little function called Math.abs() ... *wink wink*

 

[Pin Head]

Hi,
I used Math.abs( y2 - y1 ) which gives me 200 instead of -200 but I still get the same
results anyway