Question

Find the perimeter of the following​

Answer 1

Answer:

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Step-by-step explanation:

perimeter=sum of all sides

2+10+8+2+4+8

34cm ansss

Answer 2

Step-by-step explanation:

The formula for calculating the surface area of a cuboid of dimensions :

l×b×h is :

2×(l×b+b×h+h×l)

Substituting,

l=10cm

b=4cm

h=3cm

Surface area = 2×(10×4+4×3+3×10)

=2×(40+12+30)

=2×82cm2

=164cm2