The areas of three adjacent faces of a cuboid are 60 cm², 72 cm², and 90 cm². What is the volume of the cuboid?
Show answer & explanation
Correct answer: A
Explanation
ab = 60, bc = 72, ca = 90
Volume = abc
Multiply the three:
(abc)² = 60 × 72 × 90 = 388800
abc = √388800 = 360√3 = 360 × 1.732 = 623.50 cm3