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30 Oct 2019, 02:50
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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:
88% (00:23) correct
12%
(00:19)
wrong
based on 41
sessions
History
Date
Time
Result
Not Attempted Yet
Based on the figure, what is the measure of ∠PRS?
A. 50◦
B. 60◦
C. 70◦
D. 120◦
E. 180◦
Attachment:
2017-04-19_1040.png [ 7.37 KiB | Viewed 4345 times ]
30 Oct 2019, 04:11
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PRQ=180-(70+50)=60
PRS=180-60=120
Posted from my mobile device
PRS=180-60=120
Posted from my mobile device
31 Oct 2019, 05:22
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Solution
Given:
A triangle PQR,
- • Angle P = 70 degrees
• Angle Q = 50 degrees
To find:
- • The value of exterior angle, R
Approach and Working Out:
- • Interior angle, R = 180 – 70 – 50 = 60 degrees
• Therefore, angle PRS = 180 – 60 = 120 degrees
Hence, the correct answer is Option D.
Answer: D
