In a circle PT is a tangent with centre O and PT= 36 cm, AP = 24 cm. Find the radius of the circle.
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Step-by-step explanation:
Given PT=30cm
OT is the radius of a cicle
therefore OT will be half of given diameter
OT = 16cm
∠OTP = 90
∘
(tangent is perpendicular to radius at point of contact)
now apply pythoguras theorem to
OP
2
=OT
2
+TP
2
OP
2
=16
2
+30
2
OP=
1156
OP=34
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