Question

the solid below is made from 1 - foot cubes. find the total surface area of the solid. be sure to include the correct unit in your answer. the value in your answer is incorrect. your answer try one last time 1 foot 42 ft ft ft² ft³

Explanation:

Step1: Analyze the surface - area components

Count the number of 1 - foot - by - 1 - foot squares on each face.

Step2: Count front and back faces

The front and back faces together have $(3\times3 + 3\times2)\times2=(9 + 6)\times2 = 30$ square feet.

Step3: Count top and bottom faces

The top and bottom faces together have $(3\times3+3\times2)\times2=(9 + 6)\times2=30$ square feet.

Step4: Count side faces

The two side - faces together have $(3\times2 + 3\times2)\times2=(6 + 6)\times2 = 24$ square feet.

Step5: Sum up all surface - area components

The total surface area is $30+30 + 24=84$ square feet.

Answer:

$84$ ft²