Question

plzz solve the 8 th one plzZz

Answer 1

Answer:

Step-by-step explanation:

edge= 10cm

number of cubes=3

surface area of cuboid= 2(lb+bh+hl)

l=3×10=30 because they are joined

b=10

h= 10

they form a cuboid so

2(lb+bh+hl)

= 2×(30×10+10×10+10×10)

=2×(300+100+100)

2×500=1000cm²

2paise 1cm²

1000×2=2000p=20rs