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In the figure provided, BT = CT. If e = 110, then y =
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27 Aug 2018, 13:55
27 Aug 2018, 13:55
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In the figure provided, BT = CT. If e = 110, then y =
lines.jpg [ 17.65 KiB | Viewed 2283 times ]
A. 30
B. 40
C. 45
D. 70
E. 110
Attachment:
lines.jpg [ 17.65 KiB | Viewed 2283 times ]
A. 30
B. 40
C. 45
D. 70
E. 110
Re: In the figure provided, BT = CT. If e = 110, then y =
[#permalink]
28 Aug 2018, 06:41
28 Aug 2018, 06:41
1
BT = CT means that the triangle is an isosceles triangle. so upper 2 angles are equal.
110 + internal angle of triangle = 180
int Angle = 70
Angles facing equal sides of a triangle are equal. A2 = 70
Finally 70 + 70 + y = 180 [Angles inside a triangle]
y= 40
110 + internal angle of triangle = 180
int Angle = 70
Angles facing equal sides of a triangle are equal. A2 = 70
Finally 70 + 70 + y = 180 [Angles inside a triangle]
y= 40
gmatclubot
Re: In the figure provided, BT = CT. If e = 110, then y = [#permalink]
28 Aug 2018, 06:41
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