The tangent at a point C of a circle and diameter AB when extended intersect at P. If ∠PCA = 110° , find ∠CBA.
a) 70° b) 105° c) 110° d) 120°

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The tangent at a point C of a circle and diameter AB when extended intersect at P. If ∠PCA = 110° , find ∠CBA.
a) 70° b) 105° c) 110° d) 120°