Home › TS EAMCET › Mathematics › Coordinate Geometry: System of Circles › A tangent is drawn from (10,0) to x²+y²=64. Its …
A tangent is drawn from (10,0) to x²+y²=64. Its length is
A10
B6
C8
D2
Answer & Solution
Correct answer: B. 6
The squared tangent length is 100 - 64 = 36, so the length is 6.
Related questions
The plane of the common circle of two spheres is the?Four points fix a unique sphere if they are?Base points that define a pencil of conics?Points in general position that fix a conic?The line shared by every plane of a pencil of planes is its?The common point of a pencil of lines is its?The radical plane of two spheres has equal what?In the chords and secants theorems, power of a point is the?