Question

the Length breadth and height of the cuboidal box are 2 metre and 10 centimetre,1m and 80 CM respectively find its total surface area

Answer 1

Volume of cuboidal box =l×b×h cubic unit
Length =2m =2×100=200cm
Breadth =10cm
Height =1m80cm =180cm
So 200×10×180cm³
=360000 cm³

TOTAL SURFACE AREA =2(LB+BH+LH)
2(200×10+10×180+200×180)
=2(2000+1800+36000)
=2×3 9 800cm2
=79600cm²