# What is the distance between #C(1, 2,3)# and #D(3,0,3)#?

##### 1 Answer

Jul 29, 2018

#### Explanation:

#"using the 3-d version of the distance formula"#

#•color(white)(x)d=sqrt((x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2)#

#(x_1,y_1,z_1)=C(1,2,3),(x_2,y_2,z_2)=D(3,0,3)#

#d_(AC)=sqrt((3-1)^2+(0-2)^2+(3-3)^2)#

#color(white)(xxx)=sqrt(4+4+0)=sqrt8=2sqrt2#