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20 Jun 2019, 18:56
Kudos
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Difficulty:
75%
(hard)
Question Stats:
39% (01:55) correct
61%
(01:33)
wrong
based on 38
sessions
History
Date
Time
Result
Not Attempted Yet
If the radius of the circle is equal to chord AB and ∠CAB=50°, what is the value of x°(∠ACB) ?
A. 20°
B. 30°
C. 40°
D. 50°
E. 60°
A. 20°
B. 30°
C. 40°
D. 50°
E. 60°
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t.png [ 8.22 KiB | Viewed 2280 times ]
20 Jun 2019, 20:38
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nick1816
let r be the radius of circle and O be the centre of a circle
so chord AB = r
so AOB equilateral..............angle aob=60
angle ALB = 30 (The central angle which intercepts an arc is the double of any inscribed angle that intercepts the same arc since angle AOB =60 SO ALB =30)
angle ACB = 30 (since both the arc are same ....properties of a circle)
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ps.png [ 8.47 KiB | Viewed 2227 times ]
17 Apr 2022, 04:46
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