LifeIsADangerousGame
  • LifeIsADangerousGame
Could someone please help me with this Geometry? I need someone to check my answers and help me solve some questions. Thank you! ^_^
Geometry
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
LifeIsADangerousGame
  • LifeIsADangerousGame
LifeIsADangerousGame
  • LifeIsADangerousGame
@jim_thompson5910 You really helped last time :D Would you mind helping me again if you're not busy?
Mertsj
  • Mertsj
Which ones do you need help with?

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LifeIsADangerousGame
  • LifeIsADangerousGame
Sorry about that, I got kicked out :/ @Mertsj I need help with any one of the questions that don't have an answer highlighted in yellow. Any of the ones that do I need them to be checked. :)
Mertsj
  • Mertsj
So number 2. It is an isosceles triangle. Do you know what an isosceles triangle is?
LifeIsADangerousGame
  • LifeIsADangerousGame
Yes, a isosceles triangle is a triangle that has two equal sides and two equal angels.
Mertsj
  • Mertsj
That is very good. So what is the sum of all the angles of a triangle?
LifeIsADangerousGame
  • LifeIsADangerousGame
The sum of all the angles of a triangle is 180 degrees.
Mertsj
  • Mertsj
So why can't you get number 2?
Mertsj
  • Mertsj
Angle B is 35, angle C is 35 so you should be able to find angle A
LifeIsADangerousGame
  • LifeIsADangerousGame
Ohh, I'm sorry, I forgot to do that one, I do know how to do that one sorry! D:
Mertsj
  • Mertsj
So # 3. There is a theorem that says that the exterior angle of a triangle is equal to the sum of the two remote interior angles. Do you know what that means? Do you know what an exterior angle of a triangle is?
Mertsj
  • Mertsj
So do you need help or not?
LifeIsADangerousGame
  • LifeIsADangerousGame
I do I'm sorry, my computer keeps freezing.
LifeIsADangerousGame
  • LifeIsADangerousGame
I don't really understand that theorem. @Mertsj
phi
  • phi
which question ?
LifeIsADangerousGame
  • LifeIsADangerousGame
I need all of the questions checked that have answers checked and then all of the questions that don't have yellow highlights I need help figuring out
phi
  • phi
Your yellow answers (btw use blue next time, I could not read yellow) are correct for question 3, you should think "If I know 2 angles of the triangle, I can figure out the 3rd" use the idea that a straight line is 180ยช to find that 2nd angle. Can you do that ?
phi
  • phi
If that is too cryptic, I am saying that angle 4 plus angle 2 add up to 180 degrees
phi
  • phi
for question 6 remember this: |dw:1362333669480:dw|
LifeIsADangerousGame
  • LifeIsADangerousGame
Sorry, I didn't get a notification For #3, is Angle 2 10?
LifeIsADangerousGame
  • LifeIsADangerousGame
Actually, it'd be 74. @phi
LifeIsADangerousGame
  • LifeIsADangerousGame
Which means Angle 1 is 106?
phi
  • phi
for question 3, you know angle 3 (64) and you know angle 2 (74) angles 1,2 and 3 add to 180
LifeIsADangerousGame
  • LifeIsADangerousGame
Ohh okay, so Angle 1 is 42?
phi
  • phi
yes
phi
  • phi
question 7 is another "angles add upto 180 in a triangle)
LifeIsADangerousGame
  • LifeIsADangerousGame
I'm not sure how to solve that one :/
phi
  • phi
Did you get 6 ? Vertical angles are =
LifeIsADangerousGame
  • LifeIsADangerousGame
are the angles opposite each other when two lines cross
phi
  • phi
yes, so if you know angle 4 you know angle 2
LifeIsADangerousGame
  • LifeIsADangerousGame
Yes, but I can't seem to get the right answer for it. None of the answers would add up to 180
phi
  • phi
what is angle 2 ? what is angle 3 ?
LifeIsADangerousGame
  • LifeIsADangerousGame
Angle 3 is 54, but I don't know what Angle 2 is, but it's the same as Angle 4
phi
  • phi
Didn't you answer question 5 ?
LifeIsADangerousGame
  • LifeIsADangerousGame
Yes but is that the right answer?
phi
  • phi
you can check: the 3 angles in the triangle add up to 180
phi
  • phi
but up above I told you Your yellow answers (btw use blue next time, I could not read yellow) are correct
LifeIsADangerousGame
  • LifeIsADangerousGame
Okay yes, that answer is correct. So angle 4 is 64 degrees. Ohh, all my yellow answers are correct? Sorry I didn't understand that D: I'll do Blue next time, thanks. So if Angle 4 is 64 degrees then Angle 2 is 64 degrees. So if Angle 2 is 64 degrees and Angle 3 is 54, then Angle 1 is 62 degrees?
phi
  • phi
yes. And that process of reasoning you went through is really what is important to learn. Geometry is just a way to set up problems that get you to think that way.
LifeIsADangerousGame
  • LifeIsADangerousGame
I'll do some of the practice questions they have for me after I'm done my assignments. :D
LifeIsADangerousGame
  • LifeIsADangerousGame
Could you help me with the questions on Page 5 and the last page?
phi
  • phi
I just notice question 18 looks wrong.
LifeIsADangerousGame
  • LifeIsADangerousGame
Did I mix up Alternate Exterior Angles?
phi
  • phi
angle 5 and angle 8 are vertical angles. The fancy names refer to angles on the 2 different parallel lines (if that makes sense)
LifeIsADangerousGame
  • LifeIsADangerousGame
So would Angle 1 be the correct answer?
phi
  • phi
yes. alternate means "other side of the transversal" and exterior means outside the 2 parallel lines.
LifeIsADangerousGame
  • LifeIsADangerousGame
Ohh okay, I got mixed up because this is a different angle of the the diagram than I am used to :/
phi
  • phi
for question 22 and 23, the idea is the angles on the "right side parallel line" are equal to their corresponding angles on the left side parallel line. so 6 matches (corresponds) with 2
phi
  • phi
using corresponding angles and knowing vertical angles are equal, you can figure out everything (except the goofy names they give the different angle pairs)
LifeIsADangerousGame
  • LifeIsADangerousGame
Does that mean Angle 6 and 7 are 140?
phi
  • phi
yes, 6 and 7 are vertical. I draw a narrow x to remind me, because the angles look = |dw:1362337901794:dw|
LifeIsADangerousGame
  • LifeIsADangerousGame
That's a good idea, I'll remembe that
phi
  • phi
25 looks wrong.
LifeIsADangerousGame
  • LifeIsADangerousGame
Well 3x = 6 would be 3x/3 = 6/3 right?
phi
  • phi
how do you get from 3x+5=11 to 3x = 6
LifeIsADangerousGame
  • LifeIsADangerousGame
Ohh you're right, that should be subtraction >.<
phi
  • phi
they are asking how you get from the first statement to the middle statement I would subtract 5 ( or add -5 which makes their reasons a little goofy)
LifeIsADangerousGame
  • LifeIsADangerousGame
And then 26 would be E instead
phi
  • phi
yes
LifeIsADangerousGame
  • LifeIsADangerousGame
It's kinda confusing because it seems like they skipped a step
phi
  • phi
you mean for 3x+5=11 given 3x = 6 subtraction property x = 2 division what step is missing ?
LifeIsADangerousGame
  • LifeIsADangerousGame
The division property
phi
  • phi
you could "show the work" 3x+5 = 11 3x +5-5 = 11-5 subtract -5 3x = 6 simplify 3x/3 = 6/3 divide by 3 x = 2 simplify
LifeIsADangerousGame
  • LifeIsADangerousGame
True, with these I think I'll do the problem that way I know what's missing
phi
  • phi
for 27, it looks like addition property of angles. You can get that one by process of elimination.... it's the only reason that mentions angles.
LifeIsADangerousGame
  • LifeIsADangerousGame
For 28, I think it's C
LifeIsADangerousGame
  • LifeIsADangerousGame
No that's not right
LifeIsADangerousGame
  • LifeIsADangerousGame
Because 29 needs to be C
phi
  • phi
you are looking for the reason for changing M
LifeIsADangerousGame
  • LifeIsADangerousGame
I think 28 is Substitution
phi
  • phi
another rule out all the add and subtract properties which do not fit. you are left with substitution, which makes sense. you are substituting 4n-6 for M
LifeIsADangerousGame
  • LifeIsADangerousGame
So now we have Addition, Subtraction, and Division left. 29 would be Addition?
phi
  • phi
how do you get from 4n-6=2n+46 to 2n -6= 46
LifeIsADangerousGame
  • LifeIsADangerousGame
...it'd be subtraction wouldn't it? They subtracted 2n from 4n?
phi
  • phi
If you have 2n's on the right side, you do you make it no n"s ?
phi
  • phi
if you have 2 apples and you take away 2 apples , how many apples do you have left ?
LifeIsADangerousGame
  • LifeIsADangerousGame
No apples left
phi
  • phi
and we call that ADD? SUBTRACT ? DIVIDE?
LifeIsADangerousGame
  • LifeIsADangerousGame
Subtracting
phi
  • phi
yes they subtracted 2n from both sides on the right 2n - 2n is 0 on the left 4n - 2n is 2n (4 apples take away 2 apples leaves 2 apples... thinking apples instead of a letter n might make this seem more obvious)
LifeIsADangerousGame
  • LifeIsADangerousGame
Yea, I'll practice these more too
phi
  • phi
almost done. question 30
LifeIsADangerousGame
  • LifeIsADangerousGame
Would that be C? Addition?
phi
  • phi
yes they added +6 to both sides 2n-6=46 becomes 2n - 6+ 6 = 46+6 addition property 2n = 52 simplify
LifeIsADangerousGame
  • LifeIsADangerousGame
And then finally 31 is E :D
phi
  • phi
yes, I think you got everything correct
phi
  • phi
now your teacher will think you are a genius and make you teach everybody else.
LifeIsADangerousGame
  • LifeIsADangerousGame
XDDD She'll be asking the wrong person :b
Mertsj
  • Mertsj
But some of us will know who the REAL genius is.!
LifeIsADangerousGame
  • LifeIsADangerousGame
O.o well yea
LifeIsADangerousGame
  • LifeIsADangerousGame
Thanks again Phi, I appreciate it! One of these days I'll be good at math!

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