Question

What is the length of cd?

Answer 1

Answer:

a length of a cd is 6 inches

Step-by-step explanation:

Answer 2

Answer:

$BC=\sqrt{5}$

Step-by-step explanation:

so we have B=(5,1) and C=(7,2)

we can use the distance formula

$P(xy)=\sqrt{(x_1-x_2)^{2}+(y_1-y_2)^2 } \\\\P(BC)=\sqrt{(5-7)^{2}+(1-2)^2 } \\\\P(BC)=\sqrt{(-2)^{2}+(-1)^2 }\\\\P(BC)=\sqrt{4+1}\\\\P(BC)=\sqrt{5}$