Question

find the surface area of chalk box whose length, bredth, height is 16cm, 8cm and 6cm respectively

Answer 1

Total surface area of cuboid is 2 (lb+bh+hl )
2 (16×8+8×6+6×16)
2 (272)
544cm

Answer 2

Surface area of rectangular chalk box

2( lb + bh + hl)

Where, l is length , b is breadth and h is height

2[( 16×8) + (8×6)+(16×6) ]

2( 128 +48+ 96)

2( 272)

544 cm ^2 is the answer.