If a point C is called a midpoint of the line segment AB. Prove that every line segment has one and only one midpoint
Kindly refer the similar link for your query.
https://www.meritnation.com/cbse-class-9/math/math/introduction-to-euclid-s-geometry/ncert-solutions/11_1_7_102_86_3297
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https://www.meritnation.com/cbse-class-9/math/math/introduction-to-euclid-s-geometry/ncert-solutions/11_1_7_102_86_3297
Regards