Question

The surface area of cuboid is 758cm2
.its length and breadth be 14cm and 11cm .find is height

Answer 1

let the height be h

surface area of a cuboid= 2(lb+bh+hl)

758=2(14×11+11×h+h×14)

758=2(154+11h+14h)

758÷2=154+55h

379-154=55h

225=55h

225÷55=h

h=4.09

Answer 2

let the height be h

surface area of a cuboid= 2(lb+bh+hl)

758=2(14×11+11×h+h×14)

758=2(154+11h+14h)

758÷2=154+55h

379-154=55h

225=55h

225÷55=h

h=4.09