Question

1]. which theorem is used while constructing a tangent to a circle by using center of a circle.​

Answer 1

Answer:

Thales' theorem

Step-by-step explanation:

The Thales theorem states that: If three points A, B, and C lie on the circumference of a circle, whereby the line AC is the diameter of the circle, then the angle ∠ABC is a right angle (90°).

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Answer 2

Answer:

Thales' theorem

Step-by-step explanation:

Thales' theorem may be used to construct the tangent lines to a point P external to the circle C: A circle is drawn centered on the midpoint of the line segment OP, having diameter OP, where O is again the center of the circle C.