Meena reasons: 'If a first thing equals a second thing, and the second equals a third, then the first equals the third.' Which one of Euclid's common notions is she using?

Question

Accepted Answer

Things which are equal to the same thing are equal to one another. First = second and second = third means first and third are both equal to the second thing, so they are equal to one another (transitivity).

Meena reasons: 'If a first thing equals a second thing, and the second equals a third, then the first equals the third.'
Which one of Euclid's common notions is she using?

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More Class 9 Euclid's Postulates practice

Meena reasons: 'If a first thing equals a second thing, and the second equals a third, then the first equals the third.'Which one of Euclid's common notions is she using?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Euclid's Postulates practice

Meena reasons: 'If a first thing equals a second thing, and the second equals a third, then the first equals the third.'
Which one of Euclid's common notions is she using?