## anonymous 3 years ago Help Plez i will fan u ->>> i need it explained plez

1. anonymous

2. anonymous

wish i could help but dont know srry

3. anonymous

its ok

4. anonymous

ok

5. RealityWillSlapYou

Did you try Googling those?

6. anonymous

no it dont help me

7. RealityWillSlapYou

Mmmm.... okay hang on and let me see if I can help :)

8. anonymous

kk

9. RealityWillSlapYou

Question 1: The shorter leg is 30 degrees so, 3 times the length of the shorter leg put into a quick equation is 30 x 3. So what is 30 x 3?

10. RealityWillSlapYou

30 x 3 = 90. So that is why question 1 is 3 times the length of the shorter leg

11. RealityWillSlapYou

I'm not sure how to explain question 2. Sorry :(

12. anonymous

its ok

13. hartnn

do you know pythagoras theorem ?

14. anonymous

no

15. hartnn

in a right angled triangle, by pythagoras theorem, |dw:1359742322102:dw|

16. anonymous

kk

17. hartnn

for 45-45-90 triangle, since 2 angles are equal, the two legs will be equal.|dw:1359742414724:dw|

18. hartnn

before that, you know what a hypotenuse is ?

19. anonymous

no

20. anonymous

@hartnn

21. anonymous

ratios of a 30 - 60 - 90 right triangle are $1:\sqrt{3}:2$ for short side : long side : hypotenuse

22. anonymous

|dw:1359744962959:dw|

23. anonymous

this tell you the longer leg is $$\sqrt{3}$$ times the shorter leg

24. anonymous

for a 45 - 45 - 90 triangle ratios are $1:1:\sqrt2$

25. anonymous

in other words, both legs are the same length (since it is an isosceles triangle) and the hypotenuse has length $$\sqrt{2}s$$ is $$s$$ is the length of the side

26. anonymous

thanks

27. anonymous

@satellite73

28. anonymous

@ritez

29. anonymous

i still dont get it

30. anonymous

@chrisshort and @ritez get on webex