Question

Add the areas of the simple shapes you found in part E to find the area of the composite shape. Do this separately for both decompositions. What do you notice about the two answers?

PART Es ANSWER: The area of a rectangle is given by A = l × w, where l is the length and w is the width. OR The length (l) and width (w) of the small rectangle are 6 feet and 7 feet, respectively, so the area of the small rectangle (As) is:

As = 6 ft. × 7 ft.
= 42 sq. ft.

Answer 1

When two figures are placed together, one of each of their surfaces meets. The surfaces come together on the inside of the figure, and are no longer a part of the surface. These surfaces are a part of the individual figures’ surface area, but not of

Step-by-step explanation:

You must exclude any intersecting faces (faces that are shared), because these faces are not on the surface.