First, calculate the area of the two rectangles that make up the sides of the box:
Area of one rectangle = base x height
Area of one rectangle = 4 in x 2.25 in = 9 in²
Now, since there are two rectangles for the sides of the box, we need to calculate the total area by multiplying by 2:
Total area of the two rectangles = 2 x 9 in² = 18 in²
Next, calculate the area of the rectangle that forms the top of the box:
Area of the top rectangle = base x base
Area of the top rectangle = 4 in x 4 in = 16 in²
Now, add up the areas of the sides and the top to find the total surface area of the box:
Total surface area = Area of the sides + Area of the top
Total surface area = 18 in² + 16 in² = 34 in²
Therefore, the surface area of the box is 34 square inches.
base = 4 in x 8 in
height = 2.25 in
what is the surface area of the box?
1 answer