Question

what formula do i use to find w?

Answer 1

what would w be ? work ?

Answer 2

width?

Answer 3

use similarity of triangles. you have two right angles to be your point of reference

Answer 4

i have to find out what w is equal to, this is a geometric means problem

Answer 5

yes i understand. Do you know what i mean by similarity of triangles?

Answer 6

yes

Answer 7

but the formula has to be something like blank/blank = blank/ blank

Answer 8

4/w=6+w/4
cross mutip
16= w^2+6w
0 = w^2+6w -16
factor: (w-2)(w+8)
w=2 or w= -8
the lenght can't negative than the solution is 2

Answer 9

thanks for the help

Answer 10

u r welco

Answer 11

yes, you can devide that image into two triangles:
|\ |\
4 | \ | \ 4
| \ (6+w) and w | \
|____\ |___\

(6+2)/4 = 4/w

Answer 12

6+2/4 = 4/2
2=2