Question

prove that tangents to a circle at a point of a diameter or parallel ​

Answer 1

Step-by-step explanation:

Prove that the tangents drawn at the end of a diameter of a circle are parallel. Given: A circle with centre O and diameter AB. Let PQ be the tangent at point A & Rs be the point B. ... OA⊥ PQ(Tangent at any point of circle is perpendicular to the radius through point of contact

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Answer 2

Step-by-step explanation:

OA is perpendicular to MN

OB is also perpendicular to QP

<OAM=90°

<OAN=90°

<OBQ=90°

<OAM=<OBP(alternate angles)

<OAN=<OBQ(alternate angles))

Interior two angles are alternate, so MN//QP

Hence proved

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