Answer:
This is solved by Distance Formula
D²=(x2_x1)²-(Y2-y1)²
So D²= (-5-0)²-(1-1)²
D²=25
We can solve D by square root so
D=5
the Distance or length between a and b was 5
you can solve for c and d in a such way
Thanks in Advance
Nahom Wondale
