To find the surface area of the box, you need to calculate the area of all of the sides and then add them together.
The box has 6 sides:
- The front and back sides have dimensions of 7 in by 3 in, so their areas are 7 in * 3 in = 21 sq in each.
- The top and bottom sides have dimensions of 5 in by 3 in, so their areas are 5 in * 3 in = 15 sq in each.
- The left and right sides have dimensions of 7 in by 5 in, so their areas are 7 in * 5 in = 35 sq in each.
Now add all the areas together to find the surface area of the box:
21 sq in (front) + 21 sq in (back) + 15 sq in (top) + 15 sq in (bottom) + 35 sq in (left) + 35 sq in (right) = 142 sq in
Therefore, the surface area of the box is 142 sq in.
base = 7 in x 5 in
height = 3 in
what is the surface area of the box?
1 answer