C-08-Q160mediumsingle_mcq
Theorem 25 states that a tangent to a circle is— the radius drawn to the point of contact.
Theorem 25 states that a tangent to a circle is— the radius drawn to the point of contact.
- aparallel to
- bequal to
- cperpendicular to
- dcoincident with
ব্যাখ্যা
By Theorem 25, the tangent at any point of a circle is perpendicular to the radius drawn to that point of contact, since the radius is the shortest distance from the centre to the line. This right-angle property is fundamental to tangent constructions.