Question

What's the answer????

Answer 1

Use the Distance Formula $\sqrt{(x1- x2)^2 + (y1-y2)^2}$
Length of A to C 

\sqrt{(7-0)^2 +(6-2)^2} = \sqrt{49+16} = \sqrt{65} 

Length of D to B

\sqrt{(4-3)^2+ (8-0)^2} = \sqrt{1+ 64} = \sqrt{65} 

Since both AC and DB are equal to  \sqrt{65}, they are equal