Question

If C lies between A and B and AB = 10cm, AC = 3cm, then find BC^2 using Euclid’s axiom.

Answer 1

AB = 10 cm
AC = 3 cm
BC = AB - AC
when equals are subtracted from equal, the whole is equal
so,
BC = 10 - 3 = 7 cm
BC² = 7² = 49 cm