Question

area of rectangle
a = l·w
what is the surface area of the three - dimensional figure?
sa = in²

Explanation:

Step1: Count the number of unit - squares on each face

By counting the small squares on the net of the 3 - D figure, we find the areas of all the faces. Assume each small square has an area of 1 square inch.

Step2: Sum up the areas of all faces

Count and sum the areas of all the rectangles in the net. After counting, we find that the total number of unit - squares representing the surface area is 96.

Answer:

96