sbuck98
  • sbuck98
I need to know the measures of some angles
Geometry
schrodinger
  • schrodinger
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sbuck98
  • sbuck98
these are the problems someone please help me
sbuck98
  • sbuck98
1 Attachment
Nnesha
  • Nnesha
practice here https://www.mathsisfun.com/definitions/corresponding-angles.html http://prntscr.com/8guf44

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sbuck98
  • sbuck98
I need the answers to these 5 problems like asap:(
Nnesha
  • Nnesha
look at there wher it says `choose one` that would help you to get answer in 30 sec
sbuck98
  • sbuck98
I tried its not working can u try for me:(((
Nnesha
  • Nnesha
anyways for first one according to the consecutive interior angles |dw:1442370605037:dw|
sbuck98
  • sbuck98
thank you so much
Nnesha
  • Nnesha
so what's the answer for first one ?
sbuck98
  • sbuck98
70 degrees right?
Nnesha
  • Nnesha
70+110 =180 both sides are equal ? if yes then 70 is correct :=)
sbuck98
  • sbuck98
Can you help with the other 4 please?
sbuck98
  • sbuck98
I could help you in the other subjects
Nnesha
  • Nnesha
:P okay
sbuck98
  • sbuck98
What subjects do you need?
Nnesha
  • Nnesha
alright for 2nd one you should know vertical angles are equal |dw:1442370863707:dw| and according to the definition:angles that are in the same position in terms of the transversal are known as corresponding angles
Nnesha
  • Nnesha
remember that's an example you should look up at ur question to find correct answer
sbuck98
  • sbuck98
I dont get it im confused
Nnesha
  • Nnesha
vertical (opposite side of each angles ) are congruent|dw:1442371175271:dw| in this example a and b are vertical angles so a=b are congruent
Nnesha
  • Nnesha
now look at the 2nd question which angle is congruent to< B ?
sbuck98
  • sbuck98
d,c, and a but there not options:((
sbuck98
  • sbuck98
oh c g and f!
Nnesha
  • Nnesha
|dw:1442371341005:dw| which angle is congruent to angle B B and D are vertical angles ?
sbuck98
  • sbuck98
cgf
Nnesha
  • Nnesha
|dw:1442371434486:dw|
Nnesha
  • Nnesha
yes that's right
sbuck98
  • sbuck98
Thank you so much! only 3 left:)
Nnesha
  • Nnesha
|dw:1442371753023:dw|which one is the vertical angle of 2x-70 ?
sbuck98
  • sbuck98
A? Could you explain I havent taken geo ever until now
Nnesha
  • Nnesha
yes right i posted above `vertical` angles `Vertical Angles are the angles opposite each other when two lines cross`
Nnesha
  • Nnesha
so you can replace `a` with 2x-70 |dw:1442371935512:dw|
Nnesha
  • Nnesha
now alternate interior angles `The pairs of angles on opposite sides of the transversal but inside the two lines are called Alternate Interior Angles.` i'll give u an example |dw:1442372027808:dw| interior means inside two parallel lines
Nnesha
  • Nnesha
so which angle is alternate interior of 2x-70 ?
sbuck98
  • sbuck98
a
Nnesha
  • Nnesha
|dw:1442372128331:dw| id a = 2x-70 (vertical angles ) now find alternate interior angle of 2x-70
Nnesha
  • Nnesha
like 5y and g are alternate interior angles so 5y=g
sbuck98
  • sbuck98
x+30 is the alternate angle
Nnesha
  • Nnesha
alternate angle is C c and x+30 are vertical ane since vertical angles are equal so you can write it as 2x-30=x+30 now solve for x
sbuck98
  • sbuck98
60
Nnesha
  • Nnesha
hmm no try again 2x-70=x+30
Nnesha
  • Nnesha
ps try again it's 2x-70 my bad
sbuck98
  • sbuck98
100
Nnesha
  • Nnesha
yes right now replace x with 100 into 2x-70
Nnesha
  • Nnesha
let me know what you get
sbuck98
  • sbuck98
130
Nnesha
  • Nnesha
yes right and we know angle a equal to 2x-70 so we can replace a with it |dw:1442372724550:dw| stright line equal to 180 degree so 130 +5y =10 solve for y
Nnesha
  • Nnesha
straight**
sbuck98
  • sbuck98
-24
Nnesha
  • Nnesha
hmm no
Nnesha
  • Nnesha
ohh god lag >.< 130+5y =180
sbuck98
  • sbuck98
10
sbuck98
  • sbuck98
ok! THank you soo much! 2 moree

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