C-08-Q169mediumsingle_mcq

If a line is perpendicular to a radius at its outer endpoint, then the line is—

aanother radius
ba tangent at that endpoint
ca chord through the centre
da secant cutting the circle in two distinct points

ব্যাখ্যা

A line perpendicular to a radius at its outer endpoint (the point on the circle) meets the circle at only that single point. This is precisely the definition of a tangent at that endpoint.

এই অধ্যায়ের আরও প্রশ্ন

C-08-Q170Theorem 26 states that two tangents drawn to a circle from an external point have—
C-08-Q171In the proof of Theorem 26, and are—
C-08-Q172The congruence used in Theorem 26 is—
C-08-Q173After the congruence, because they are—
C-08-Q174If and are tangents from an external point to a circle with centre , then is—
C-08-Q175also bisects the angle—
C-08-Q176Two tangents and are drawn from to a circle. If and centre is , then equals—
C-08-Q177Two tangents and are drawn from to a circle with centre such that . The value of is—
C-08-Q178Theorem 27: if two circles touch each other externally, the point of contact and the two centres are—
C-08-Q179The proof of Theorem 27 uses the fact that at the point of contact—

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