Question
Download Solution PDFPT is a tangent to a circle whose centre is O, and where T is a point on the circle. If PT = 12 cm and PO = 13 cm, then find the radius of the circle.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
PT is tangent to a circle whose center is O, and where T is a point on the circle.
PT = 12 cm and PO = 13 cm
Concept used:
The radius = √(PO2 - PT2)
Calculation:
The radius (r) = √(PO2 - PT2)
⇒ r = √(132 - 122)
⇒ r = √(169 - 144)
⇒ r = √25 = 5 cm
∴ The correct option is 4
Last updated on Jun 13, 2025
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