Thread: can you help with a formula

(a) can be any length
(b) can be any width
(c) can be any angle

My starting point for this formula is (c) = 90 degrees


a d
. .
|
|
|
|
c---------b

if (c) was less than 90 or greater and i know than angle and know the sizes for (a) and (b)

What formula can i use to find the distance between a&d

hope u can help.

chees jimE

Can you please elaborate more on your question? Be specific.

just looked at my post (c) was in the wrong place please look again. What more do u need me t tell u about this question. i am very poor at maths and maybe i have not explained things right

cheers jim

A D
. .
. .
. .
......................
b C

A B Lenght 1500mm
D C length 1500mm

B C width 500mm

(Angle) A (B) C = 92 degrees (or any given angle)

(Angle) D (C) B = 92 degrees ( or any given angle)

Formula to work out distance between A & D

hope this helps more

jimE

Hello

You should use the tags [code] text of the "drawing" [/code] to "draw" otherwise the forum deletes the spaces when they are too numerous. (i.e. when there are more than two consecutive spaces)

Code:

A                    D
.                    .
.                    .
.                    .
......................
b                    C

Originally Posted by jime831

A D
. .
. .
. .
......................
b C

A B Lenght 1500mm
D C length 1500mm

B C width 500mm

(Angle) A (B) C = 92 degrees (or any given angle)

(Angle) D (C) B = 92 degrees ( or any given angle)

Formula to work out distance between A & D

hope this helps more

jimE

I've tried to draw what I think you have described. Turns out to be an isosceles trapezoid with base angles of 92 degrees and 88 degrees, respectively (total interior angle = 360 degrees in a quadralateral).

XY=500 since BY is parallel to CY, making BC = XY.

AX = DY since triangles ABX and DCY are congruent.

To find AX, use





Substituting,