In the diagram lt QPT lt PTS 90O lt PQR 110 and... - WAEC Mathematics 2014 Question
In the diagram < QPT = < PTS = 90O, < PQR = 110 and < TSR = 20o. Find the size of the obtuse angle QRS
A
140o
B
130o
C
120o
D
110o
correct option: b
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