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10 Nov 2020, 01:15
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
90% (00:49) correct
10%
(00:42)
wrong
based on 83
sessions
History
Date
Time
Result
Not Attempted Yet
In the figure shown, what is the value of y?
A. 60°
B. 75°
C. 90°
D. 100°
E. 120°
Attachment:
2020-10-27_13-32-40.png [ 29.24 KiB | Viewed 3938 times ]
10 Nov 2020, 01:36
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The Sum of all the angles in a triangle is \(180^o\).
=> \(65^o\) + \(90^o\) + x = \(180^o\)
=> x = \(25^o\)
Similarly, \(40^o\) + \(85^o\) + z = \(180^o\)
=> z = \(55^o\)
=> x + y + z = \(180^o\)
=> y = \(180^o\) - (\(25^o\) + \(55^o\))
=> y = \(100^o\)
Answer D
=> \(65^o\) + \(90^o\) + x = \(180^o\)
=> x = \(25^o\)
Similarly, \(40^o\) + \(85^o\) + z = \(180^o\)
=> z = \(55^o\)
=> x + y + z = \(180^o\)
=> y = \(180^o\) - (\(25^o\) + \(55^o\))
=> y = \(100^o\)
Answer D
