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Difficulty:
5%
(low)
Question Stats:
92% (00:38) correct
8%
(00:52)
wrong
based on 52
sessions
History
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In the figure provided, BT = CT. If e = 110, then y =
A. 30
B. 40
C. 45
D. 70
E. 110
Attachment:
lines.jpg [ 5.45 KiB | Viewed 1491 times ]
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Bunuel
B is the correct answer.
BT =CT
Thus , angle B = angle C
70 + 70 + ANGLE y = 180
y = 40.
Attachments
Capturerv.JPG [ 18.18 KiB | Viewed 1363 times ]
General Discussion
- Triangle BCT is isosceles(given BT = CT), and angle BCT = 180 - e => 180-110 = 70.
- angle BCT = angle CBT = 70
- y = 180-70-70 = 40
Option B!
- angle BCT = angle CBT = 70
- y = 180-70-70 = 40
Option B!
Posts: 3,651
Solution
Given
• BT = CT
• e = 110
To find
• Value of y
Approach and Working out
In triangle BCT, angle BCT = 180-e = 180-110= 70
• BT = CT. Hence, angle BCT = Angle CBT = 70
• 70 + 70 +y =180
o y= 40
Thus, option B is the correct answer.
Correct Answer: Option B
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