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WAEC - Mathematics (1990 - No. 35)
In the diagram below, O is the center of the circle if ∠QOR = 290
o
, find the size ∠QPR
110
o
70
o
55
o
35
o
20
o
Explanation
360
o
- 290
o
= 70
o
70/2 = 35
o
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