A chord of length 32 cm is drawn at a distance of 12 cm from the center of a circle. Find the radius of the circle.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 20 cm.
From the figure above
In ΔPRO
PO2 = PR2 + RO2
⇒ PO2 = 162 + 122
⇒ PO2 = 256 + 144
⇒ PO2 = 400
⇒ PO = √400
⇒ PO = 20cm