Let-A-2-1-B-1-3-C-10-5-three-given-points-in-the-brand-O-I-J-such-as-OI-OJ-and-OI-OJ-D-is-a-point-such-as-AD-AC-2-and-CD-2-Prove-correctly-that-BD-13-

Question Number 83293 by ~blr237~ last updated on 29/Feb/20

L e t A (\begin{matrix} - 2 \\ - 1 \end{matrix}), B (\begin{matrix} 1 \\ 3 \end{matrix}), C (\begin{matrix} - 10 \\ 5 \end{matrix}) t h r e e g i v e n p o i n t s i n t h e b r a n d (O, I, J) s u c h a s O I = O J a n d (O I) ⊥ (O J)

D i s a p o i n t s u c h a s A D = A C + 2 a n d C D = 2

P r o v e c o r r e c t l y t h a t B D = 13 . C a n y o u f i n d t h e c o o r d i n a t e o f D ?