Question

find the total surface area of a cuboid of length 10cm breadth 5cm and height 8cm
class 8​

Answer 1

Answer:

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

$2(10 \times 5 + 5 \times 8 + 8 \times 10)$

= 2(50+40+80)

= 2(170)

= 2×170

= 340

Answer 2

Answer:

TSA- 2LB+2BH+2HL

= 2×10×5 + 2×5×8 + 2×8×10

= 100 + 80 + 160

= 340