Pls solve ques 13 person who will give the answer I will mark him as brainliest
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Since, l // m // n.
Let AC be the transversal then,
Angle A + Angle C = 180 [ Co - interior angles ]
110 +x = 180
X = 180 - 110 = 70.
ON line n ,
30 + y + 20 = 180 [ Linear Pair ]
y = 180 - 50 = 130
When m // n,
=> Angle z = 20 [ alternate interior angles]
In triangle CDE,
Angle z + Angle t + Angle y = 180 [ Angle Sum property ]
130 + Angle t + 20 = 180
=> Angle t = 180 - 150 = 30.
VALUE OF ( y + x ) / ( y - x )
= (130 + 70) / ( 130 - 70)
= 200 / 60
= 10 / 3 or 10 : 3 .
Let AC be the transversal then,
Angle A + Angle C = 180 [ Co - interior angles ]
110 +x = 180
X = 180 - 110 = 70.
ON line n ,
30 + y + 20 = 180 [ Linear Pair ]
y = 180 - 50 = 130
When m // n,
=> Angle z = 20 [ alternate interior angles]
In triangle CDE,
Angle z + Angle t + Angle y = 180 [ Angle Sum property ]
130 + Angle t + 20 = 180
=> Angle t = 180 - 150 = 30.
VALUE OF ( y + x ) / ( y - x )
= (130 + 70) / ( 130 - 70)
= 200 / 60
= 10 / 3 or 10 : 3 .
poojakumaresh26:
recheck your answer its 180-50 not 180-60!!
Ya... the ratio is 10 /3.
My last step is wrong.
Now., it is correct.
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