Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 3 - No. 36)
Which formula is used to calculate the distance between two points in a coordinate plane (a, b) and (c, d)?
√(a^2 + b^2)
√(c^2 + d^2)
√((c-a)^2 + (d-b)^2)
a^2 + b^2 = c^2 + d^2
คำอธิบาย
The distance formula is derived from the Pythagorean Theorem.