Find the whole surface area of a cuboid having a length of 19 cm, breadth of 9 cm and height of 4.5 cm.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 594 cm2.
Total surface area = 2( lb + bh + hl)
⇒2 (19 × 9 + 9 × 4.5 + 4.5 × 19)
⇒2 ( 171 + 40.5 +85.5 )
⇒ 2 × 297 = 594 cm2