Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 11)
Which of the following is the formula to calculate the length of a diagonal of a cuboid with dimensions a, b and c?
√(a^2 + b^2)
√(a^2 + b^2 + c^2)
√(a^2 + c^2)
a + b + c
คำอธิบาย
The formula to calculate the length of a diagonal of a cuboid is √(a^2 + b^2 + c^2).