In the following figure, if AC = BD, then prove that AB = CD. - Mathematics

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In the following figure, if AC = BD, then prove that AB = CD.

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Solution

From the figure, it can be observed that

AC = AB + BC

BD = BC + CD

It is given that AC = BD

AB + BC = BC + CD ......(1)

According to Euclid’s axiom, when equals are subtracted from equals, the remainders are also equal.

Subtracting BC from equation (1), we obtain

AB + BC − BC = BC + CD − BC

AB = CD

  Is there an error in this question or solution?
Chapter 5: Introduction to Euclid's Geometry - Exercise 5.1 [Page 86]

APPEARS IN

NCERT Mathematics Class 9
Chapter 5 Introduction to Euclid's Geometry
Exercise 5.1 | Q 6 | Page 86

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