- sbuck98

I need to know the measures of some angles

- schrodinger

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- sbuck98

these are the problems someone please help me

##### 4 Attachments

- sbuck98

##### 1 Attachment

- Nnesha

practice here https://www.mathsisfun.com/definitions/corresponding-angles.html http://prntscr.com/8guf44

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## More answers

- sbuck98

I need the answers to these 5 problems like asap:(

- Nnesha

look at there wher it says `choose one` that would help you to get answer in 30 sec

- sbuck98

I tried its not working can u try for me:(((

- Nnesha

anyways for first one according to the consecutive interior angles |dw:1442370605037:dw|

- sbuck98

thank you so much

- Nnesha

so what's the answer for first one ?

- sbuck98

70 degrees right?

- Nnesha

70+110 =180
both sides are equal ? if yes then 70 is correct :=)

- sbuck98

Can you help with the other 4 please?

- sbuck98

I could help you in the other subjects

- Nnesha

:P okay

- sbuck98

What subjects do you need?

- 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

remember that's an example you should look up at ur question to find correct answer

- sbuck98

I dont get it im confused

- 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

now look at the 2nd question which angle is congruent to< B ?

- sbuck98

d,c, and a but there not options:((

- sbuck98

oh c g and f!

- Nnesha

|dw:1442371341005:dw|
which angle is congruent to angle B
B and D are vertical angles ?

- sbuck98

cgf

- Nnesha

|dw:1442371434486:dw|

- Nnesha

yes that's right

- sbuck98

Thank you so much! only 3 left:)

- Nnesha

|dw:1442371753023:dw|which one is the vertical angle of 2x-70 ?

- sbuck98

A? Could you explain I havent taken geo ever until now

- Nnesha

yes right
i posted above `vertical` angles `Vertical Angles are the angles opposite each other when two lines cross`

- Nnesha

so you can replace `a` with 2x-70 |dw:1442371935512:dw|

- 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

so which angle is alternate interior of 2x-70 ?

- sbuck98

a

- Nnesha

|dw:1442372128331:dw|
id a = 2x-70 (vertical angles )
now find alternate interior angle of 2x-70

- Nnesha

like 5y and g are alternate interior angles
so 5y=g

- sbuck98

x+30 is the alternate angle

- 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

60

- Nnesha

hmm no try again 2x-70=x+30

- Nnesha

ps try again it's 2x-70 my bad

- sbuck98

100

- Nnesha

yes right now replace x with 100 into 2x-70

- Nnesha

let me know what you get

- sbuck98

130

- 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

straight**

- sbuck98

-24

- Nnesha

hmm no

- Nnesha

ohh god lag >.<
130+5y =180

- sbuck98

10

- sbuck98

ok! THank you soo much! 2 moree

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