The sum of the length, breadth and depth of a cuboid is 19 cm and its diagonal is 5 
cm. Its surface area is
Given,
Sum of length ,breadth, height of cuboid = 19 cm
Diagonal of cuboid = 5√5 cm
= 
(Squaring both side )
= 
∵ 
Putting values …
= 192 = 125 + 2
= 
= surface area of cuboid = 236 cm2
6