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In the figure above if the two lines are parallel and b = 40, what is

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Math Expert
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In the figure above if the two lines are parallel and b = 40, what is  [#permalink]

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New post 22 Aug 2018, 03:50
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A
B
C
D
E

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Re: In the figure above if the two lines are parallel and b = 40, what is  [#permalink]

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New post 22 Aug 2018, 03:55
1
Bunuel wrote:
Image
In the figure above if the two lines are parallel and b = 40, what is the value of x?

A. 140
B. 110
C. 100
D. 70
E. 40

Attachment:
image004.gif


since 2a+b = 180 and b=40
=> a=70.

From the figure x=a+b
x=110.
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Re: In the figure above if the two lines are parallel and b = 40, what is  [#permalink]

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New post 22 Aug 2018, 03:57
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Angle X and angle a+b are correspoding angles. Means X = A+B.
Since, A+B+A = 180. and B = 40.
A becomes 70.

Therefore angle X = 40+70 = 110.

B is the answer

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Re: In the figure above if the two lines are parallel and b = 40, what is  [#permalink]

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New post 22 Aug 2018, 05:24
1
Bunuel wrote:
Image
In the figure above if the two lines are parallel and b = 40, what is the value of x?

A. 140
B. 110
C. 100
D. 70
E. 40

Attachment:
image004.gif


2a+b=180
a=70

a+x=180
x=110
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Re: In the figure above if the two lines are parallel and b = 40, what is  [#permalink]

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New post 22 Aug 2018, 05:28
It is a simple question of parallel lines.
The above angle x is same as below b+a since lines are parallel

2a+b = 180 (measure of a line)

Solve and x = 110

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Re: In the figure above if the two lines are parallel and b = 40, what is   [#permalink] 22 Aug 2018, 05:28
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In the figure above if the two lines are parallel and b = 40, what is

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