Answer:
d=6
Step-by-step explanation:
We want to find the length of a side, so we can use the distance formula
d = [tex]\sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]
[tex](x_1, y_1)[/tex] =coordinates of the first point
[tex](x_2, y_2)[/tex] =coordinates of the second point
We are trying to find the length of BC, so we need to use the points B and C
(7,5) and (7, -1)
Substitute the points into the formula
d=[tex]\sqrt{(7-7^{2}+(5--1)^{2} }[/tex]
d=[tex]\sqrt{0^{2}+6^{2} }[/tex]
d=[tex]\sqrt{0+36}[/tex]
d=[tex]\sqrt{36}[/tex]
d=6
Hope this helps! :)
