This is circle based question from Chapter name- circles
Topic – Angle properties of circles
Chapter number- 15
In the given figure, O is the centre and AOE is the diameter of the semicircle ABCDE.
AB = BC and ∠AEC = 50°,
Now we have to find : (i) ∠CBE (ii) ∠CDE (iii) ∠AOB.
Also we have to Prove that OB is parallel to EC.
ICSE Avichal publication
Understanding ICSE Mathematics
Question no 12
Solution:
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In the given figure,
O is the centre of the semi-circle ABCDE
and AOE is the diameter. AB = BC, ∠AEC = 50°