In the diagram, PS and RS are tangents to the circle cent...
In the diagram, PS and RS are tangents to the circle centre O. ∠PSR = 70°, ∠POR = m, and ∠PSR =n. Find ( m + n ).
110o
135o
165o
225o
Correct answer is C
In the diagram,
Thus, m = 2 x 55o (is a bisector of obtuse
m = 110o
n = 12 x 110o (angle at centre = 2 x angle at circum)
n = 55o
m + n = 110 + 55 = 165o
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