Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 8 - No. 3)
In a cuboid, given sides a, b, and c, what is the method for finding the length of the space diagonal?
a + b + c
(a + b + c)/3
√(a² + b² + c²)
a² + b² + c²
설명
The correct formula is √(a² + b² + c²).