Question

I’m so confused on this. Someone please help, please and thank you <3

Answer 1

Explanation:

The formula of a distance between two points:

`d=√((x_2-x_1)^2+(y_2-y_1)^2)`

We have

A(0, 0), C(a, b)

`AC=\sqrt{(a-0)^2+(b-0)^2=√(a^2+b^2)`

B(a, 0), D(0, b)

`BD=√((0-a)^2+(b-0)^2)=√((-a)^2+b^2)=√(a^2+b^2)`

Therefore AC = BD.