moments equilibrium- can some1 walk me thru this please

[somber smelt]

lmk if u dont understand anything

[dusk jasper]

thank you for your response, where did you get cos 20 from?

[somber smelt]

finding the clockwise moment

u multiply it by the vertical component of r1

because u want the perpendicular distance

to the ladder

[dusk jasper]

would it be possble to draw ur diagram a bit clearer please

[somber smelt]

idk if thats any better ngl

but essentially we r using the adjacent side to the angle

of r1

[dusk jasper]

bros theres something called a ruler lol

but i appreciate it

[dusk jasper]

at what point do you take moments about?

[somber smelt]

in an exam im not backing out a ruler to draw a diagram

[somber smelt]

point B

which i forgot to label in my second diagram

[dusk jasper]

Okay got it thanks