Question

Romona 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? Enter your answer in the box ___ inches2

Answer 1

To find the total surface area, find the area of all the surfaces and add them together.

There are 6 sides of a rectangle.

5*8=40*2=80

3*5=15*4=60

60+80=140

The total area is 140 square inches.

Hope this helps!