Question
Consider two concentric circles having radii 17 cm and 15
Consider two concentric circles having radii 17 cm and 15
cm. What is the length (in cm) of the chord, of the bigger circle, which is a tangent to the smaller circle?
Applying the property of chord and tangent: We find that- 172 = 152+(x/2)2 289 = 225 +x2 /4 289 – 225 =x2 /4 x2 =256 x=16 Therefore, length of the chord = 16 cm.More Geometry Questions
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