Question

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Answer 1

Answer:

OP=OQ ( radius of circle is equal )

So, OPQis an isosceles triangle

so there opposite angle also equal

L OPQ =L OQP=18

QT is tangent ( given)

we know that the tangent perpendicular to radius on point of contect

SO

L OQP+L PQT =90

18+L PQT =90

L PQT =72