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WAEC - Mathematics (1994 - No. 39)

In the diagram above, PQ is the tangent to the circle RST at T.|ST| = ST and ∠RTQ = 68o. Find ∠PTS
68o
62o
61o
56o
34o

설명

∠TSR = 68o ∴ STR =
180-68/2
= 56o

PTS= 180-(68+56) = 56o

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