Question

Ramona is painting the entire surface of a block of wood in the shape of a right rectangular prism. The block of wood has a length of 8 in., a width of 3 in., and a height of 5 in.

What is the total area she will paint?

Answer 1

the given shape is a cuboid
l=8
b=3
h=5
total surface area of the cuboid
=2(lb + bh +hl)
=2(8*3 + 3*5 + 5*8)
=2(24+15+40)
=2(79)
=158 inch^2  answer

Answer 2

Answer: Total area she will paint is 158 in².

Step-by-step explanation:

Since we have given that

Length of cuboid = 8 in

Width of cuboid = 3 in.

Height of cuboid = 5 in.

Total area she will paint is given by

$2(lb+bh+lh)\\\\=2(8\times 3+3\times 5+8\times 5)\\\\=2(24+15+40)\\\\=158\ in^2$

Hence, Total area she will paint is 158 in².