A cuboid has a volume of 350 cm3 and its length is twice its height. If the breadth is 7 cm, find its dimensions.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 10 cm × 7 cm × 5 cm.
Volume = length × breadth × height
Let height = h, length = 2h, breadth = 7 cm
350 = 2h × 7 × h = 14h2
⇒ h2 = 25
⇒ h = 5 cm
Length = 10 cm, breadth = 7 cm, height = 5 cm
Dimension: 10 cm × 7 cm × 5 cm