## anonymous 3 years ago What is the length of MO? 1 , √3 , 2 , 3

1. anonymous

|dw:1367500793769:dw|

2. ajprincess

is that a right angled triangle @ciara_xo?

3. anonymous

yes

4. ajprincess

k. use pythagoras theorem to find MO. |dw:1367501737765:dw| Does that help?

5. anonymous

yea i tried it yesterday and got pretty confused while i was doing it..

6. ajprincess

can u pls show me ur work?

7. anonymous

i threw away the piece of paper it was on but i did the theorom & came out w. 3 which is wrong.

8. ajprincess

$$a^2+c^2=b^2$$ a=1, b=2 $$1^1+c^2=2^2$$ $$1+c^2=4$$ nw can u find c?

9. anonymous

hold on lemme try

10. ajprincess

k 5n:)

11. anonymous

shouldnt it be -3?

12. ajprincess

nope:( $$1+c^2=4$$ $$c^2=4-1$$ $$=?$$

13. anonymous

3 than? lol

14. ajprincess

3=c^2. so vat will be c?

15. anonymous

9, so is the answer sqrt3?

16. ajprincess

$$c=\sqrt3$$ bt whre does that 9 come frm?

17. anonymous

3^2 but i guess i didnt need to do that.

18. ajprincess

ya. u neednt