Answer:
80 square units
Explanation:
These are rectangles and triangles.
The formula to get the area of a rectangle is its length multiplied by its width.
The formula to get the area triangle is its base multiplied by its height, then divided by 2.
Step 1: Rectangle area
The 3 rectangles all share the width of 6 units, so we can combine the 3 rectangles and consider it as 1 large rectangle.
The lengths of the rectangles are 2, 8, and 2 units.
We can add them together to get a total height of 12 units.
So, the formula to get the area of this rectangle is:
By solving this, we get:
A = 72 square units
Step 2: Triangle area
There are 4 triangles remaining.
The base and height of all the triangles are 2 units.
So, by plugging these values into the triangle area formula, as mentioned from the beginning, we get:
So, the area of 1 triangle is 2 square units.
But since there are 4 triangles with the same bases and heights, we will multiply the area of 1 triangle by 4.
So,
This means the area of all the triangles together is 8 square units.
Step 3: Total area
By adding the area of the triangles and rectangles together, we will get the answer.
So, the total area of this box is 80 square units.