## Emily778 2 years ago What's the big difference between "Side Angle Side" and "Side Side Side"? I'm confused

1. jim_thompson5910

with "Side Angle Side", you have 2 sides and an included angle pic: |dw:1354651195503:dw| with "Side Side Side", you have 3 sides pic: |dw:1354651237390:dw|

2. Emily778

thankyou! that helped a lot! :) can you help me with more? My grade went down because of this thing. :(

3. Emily778

4. Emily778

ASA SSS SAS not enough information

5. Emily778

which one would it be?

6. jim_thompson5910

so using the info i gave above, which one are you thinking?

7. Emily778

sss?

8. Emily778

sas?

9. Emily778

:/

10. jim_thompson5910

yes, SSS

11. jim_thompson5910

you have 3 corresponding sides equal ----> SSS

12. Emily778

you sure? I need to get all of these right. No "I think"

13. jim_thompson5910

I'm very sure

14. jim_thompson5910

I've done this many times so I'm very familiar with all the triangle congruence properties

15. Emily778

would this be sas or asa?

16. jim_thompson5910

|dw:1354653199859:dw|

17. jim_thompson5910

notice this |dw:1354653246131:dw| so those two sides (which form the first S) are congruent

18. Emily778

is the second one i just posted sas?

19. jim_thompson5910

the other one, you have 2 sides and an angle (angle is between the two sides)

20. jim_thompson5910

yep

21. Emily778

I'm really confused with this one. :/

22. jim_thompson5910

you CANNOT use SSA because there's no one unique triangle that SSA makes so there are no guarantees that those two triangles are congruent if you use SSA

23. Emily778

so, asa or not enough information?

24. jim_thompson5910

not enough info SSA always leads to "not enough info"

25. jim_thompson5910

always

26. Emily778

the options were asa, sss, sas, and no enough info. not ssa

27. jim_thompson5910

i know, that's because SSA isn't a valid congruence property

28. Emily778

I'm guessing this one is ASA?

29. jim_thompson5910

yep

30. Emily778

10. A C (1 point) Alternate Exterior Angles Alternate Interior Angles Vertical Angles They look the same.

31. Emily778

I'm guessing vertical?

32. jim_thompson5910

no, vertical angles look like this |dw:1354653660952:dw|

33. Emily778

oh yeah lol

34. Emily778

exterior?

35. jim_thompson5910

nope

36. Emily778

they look the same? :/

37. jim_thompson5910

you have 2 parallel lines and the angles are on the INSIDE of them

38. jim_thompson5910

that's never a good reason in geometry

39. jim_thompson5910

using "they look the same" is always a bad response because the drawing may not be to scale or it may be drawn poorly

40. Emily778

no it says "<a parallel <c"

41. Emily778

I know it's a bad response but I'm confused D:

42. jim_thompson5910

angles can't be parallel...so something is off

43. Emily778

Oh wait.. does the = sign with the swirly thing on top mean congruent? xD

44. jim_thompson5910

yeah

45. Emily778

I probably got them mixed up! lol

46. Emily778

okay, do you get it now?

47. jim_thompson5910

that's fine, btw, to say "parallel" you type ||

48. jim_thompson5910

49. Emily778

what is it? And I wrote that down so I remember and don't act stupid :D

50. jim_thompson5910

it's alternate interior angles notice how they're on the inside of the parallel lines

51. Emily778

Oh. I was paying more attention on the angles of them than where the line was. :) thanks. And can you help me on the last 2 too? :D

52. jim_thompson5910

sure

53. Emily778

It's the same picture for the last two, just different questions

54. Emily778

<AXB congruent <CXD

55. Emily778

Corresponding Angles Vertical Angles Theorem Alternate Interior Angles Supplementary Angles

56. Emily778

I think corresponding..o_ o

57. Emily778

no wait..vertical! Right? :D

58. jim_thompson5910

yep vertical

59. jim_thompson5910

nice catch

60. Emily778

This last one I really don't know.. <ABX congruent <CDX SAS SSS ASA Reflexive property of equality

61. jim_thompson5910

you know this < A = < C <AXB = <CXD AX = XC

62. Emily778

Yes, but I still don't know the answer

63. Emily778

pleeaaasee help I am so behind because I started school late Dx

64. Emily778

And I have a month to get everything completed

65. jim_thompson5910

Angle: < A = < C Angle: <AXB = <CXD Side: AX = XC

66. Emily778

asa?

67. Emily778

right? :D

68. jim_thompson5910

correct

69. jim_thompson5910

the side is between the angles

70. Emily778

I got 11/12. :D The mistake being my own..:/

71. Emily778

thank you! What grade are you in?

72. jim_thompson5910

which one did you miss

73. Emily778

the first one. Sad thing is I thought I really had it. it wasn't one you helped me on.

74. Emily778

can you help me on other ones? :D five questions?

75. jim_thompson5910

same type of problem though right?

76. Emily778

R , S, and T are the vertices of one triangle. E, F, and D are the vertices of another triangle. mR = 60, mS = 80, mF = 60, mD = 40, RS = 4, and EF = 4. Are the two triangles congruent? If yes, explain and tell which segment is congruent to RT . (1 point)

77. Emily778

yes, by ASA; yes, by AAS; yes, by SAS; No, the two triangles are not congruent.

78. Emily778

Do you know these?

79. jim_thompson5910

this is what we're given |dw:1354655142386:dw|

80. jim_thompson5910

we can find this out |dw:1354655272312:dw|

81. jim_thompson5910

so if you flip the second triangle you get this |dw:1354655318737:dw|

82. jim_thompson5910

so we can use ASA angle S = angle E (A) RS = FE (S) angle R = angle F (A)

83. Emily778

so, yes, by sas, ed?

84. jim_thompson5910

no, ASA and what do you mean by ed?

85. Emily778

That's what it says..Nevermind. The only one with ASA is FD

86. jim_thompson5910

yeah RT = FD

87. jim_thompson5910

you have to look at my last drawing

88. Emily778

Thanks, Jim! :) :)

89. Emily778

A, B, and C are the vertices of one triangle. D, E, and F are the vertices of another triangle. m∠A = 50, m∠B = 10, m∠E = 40, m∠F = 30, AB = 6, and DE = 6. Are the two triangles congruent If yes, explain why and tell which segment is congruent to AC . (1 point)

90. Emily778

yes, by SAS; yes, by ASA; yes, by AAS; No, the two triangles are not congruent.

91. Emily778

I'm sure I could do these if I tried, but I really wanna get these done. :/

92. jim_thompson5910

give it a shot, try drawing it out like i did it

93. Emily778

please.. I have so much other school things to do. :( and you never told me what grade you're in

94. jim_thompson5910

|dw:1354656200143:dw|

95. jim_thompson5910

|dw:1354656292746:dw|

96. jim_thompson5910

since these two triangles have 2 completely different sets of angles, they cannot be congruent

97. Emily778

so, it would be the last one?

98. jim_thompson5910

yes

99. jim_thompson5910

they're 2 completely different triangles, so they aren't congruent

100. Emily778

Supply the missing reasons to complete the proof. Given: <Q congruent <T Prove: PR congruent to SR

101. Emily778

102. Emily778

ASA; substitution SAS; Corresponding parts of are . AAS; Corresponding parts of are . ASA; Corresponding parts of are .

103. Emily778

I feel so lazy but I really need these done

104. jim_thompson5910

well i hate to tell you this, but laziness isn't a good excuse

105. Emily778

how old are you

106. jim_thompson5910

not sure how that matters or how that is relevent...

107. jim_thompson5910

relevant*

108. Emily778

And I have like almost 20 overdue assignments in each subject. I will do it when i get all on track. I usually don't cheat. But I feel it's the only way, I will get things done. And if that's what I have to do, than I will do it.

109. Emily778

Well, I know it's not relevant, but i'm curious. :I

110. Emily778

Can you at least show me how to do the last one I posted. I actually am confused with that one.

111. jim_thompson5910

any ideas on this current problem?

112. Emily778

I don't get it.

113. Emily778

you sound old.

114. jim_thompson5910

ok

115. Emily778

Okay, I think it's SAS. Am I correct?

116. Emily778

hello?