Question

The difference between the total surface area and the lateral surface area of a cuboid

of length 20 cm, breadth 10 cm and height 40 cm is
a. 1000 cu cm

b. 6000 cu cm

C 600 cu cm

d. 1600 cu cm​

Answer 1

Answer:

option d is the correct answer

Answer 2

Step-by-step explanation:

tsa of cuboid- 2(lb+bh+hl)

2( 20*10+10*40+40*20)

2(200+400+800)

2(1400)

2800 cm^2

lsa of cuboid- 2h(l+b)

2*40(20+10)

80(30)

2400 cm^2

DIFFERENCE = TOTAL SURFACE AREA OF CUBOID-LATERAL SURFACE AREA OF CUBOID

= 2800-2400

= 400 CM^2