Question

Total surface area of cuboid is 792cm square and length is 12cm and breadth is 15 cm . what will be its volume

Answer 1

hlo

TSA of cuboid = 2 (lb + bh + hl )

2( 12 × 15 + 15 × h + h × 12 ) = 792

2 ( 180 + 15h + 12h ) = 792

2 ( 180 + 27h ) = 792

360 + 54h = 792

54h = 792 - 360

54h = 432

h = 432 / 54

h = 8

volume = l × b × h

12 × 15 × 8 = 1440cm^3✔✔

hope it helps♥

thanku..

Answer 2

TSA of cuboid =792 cm

LENGTH= 12CM

BREADTH= 15CM

TSA OF CUBOID = 2( LB+BH+HL)

FIRST WE HAVE TO FIND THE HEIGHT OF THE CUBOID.

2( 12×15+15×H+12×H) = 792CM

2 ( 180+ 15H + 12H) = 792 CM

180 + 15H + 12H =792/2

180+15H+12H= 396 CM

27H = 396 - 180

27H = 216

h = 216/27

h = 8cm

volume of cuboid = l× b× h

= 12×15×8

=1440 cm..