Need Help
Find the value of x.

A.
4
B.
5
C.
6
D.
9http://media.education2020.com/evresources/2090627_0572514b-e95c-40ac-b04b-93d5fd28505f.png

Question

Need Help
Find the value of x.

A.
4
B.
5
C.
6
D.
9http://media.education2020.com/evresources/2090627_0572514b-e95c-40ac-b04b-93d5fd28505f.png

zzr0ck3r · Answer

short arm$^2$+short arm$^2$ = long arm$^2$

bkdgui9gmn_45 · Answer

I'm aware of the formula but i just cant figure it out

zzr0ck3r · Answer

so what do you have when you square the two small arms and set them equal to the square of the big one?

zzr0ck3r · Answer

@bkdgui9gmn_45 ?

bkdgui9gmn_45 · Answer

??

sachintha · Answer

$(x+3)^2~ + ~?~=~? $ :3

bkdgui9gmn_45 · Answer

Am still having trouble trying to figure it out

sachintha · Answer

You know the Pythagoras theorem. Use it here. Length of the sides are given with one unknown variable. 
|dw:1463895585806:dw|