Question
Find the surface area of a textbook that is 2“ x 14“ x 9”
Answers
Answered by
GPT 3.5
To find the surface area of a textbook with dimensions 2" x 14" x 9", you need to calculate the surface area of each face and add them together.
The textbook has 6 faces: top, bottom, front, back, left side, and right side.
The top and bottom faces have the same dimensions, so their surface area is:
2" x 14" = 28 square inches each.
The front and back faces have the dimensions 2" x 9", so their surface area is:
2" x 9" = 18 square inches each.
The left and right side faces have the dimensions 14" x 9", so their surface area is:
14" x 9" = 126 square inches each.
Therefore, the total surface area of the textbook is:
28 sq in + 28 sq in + 18 sq in + 18 sq in + 126 sq in + 126 sq in = 344 square inches. Answer: \boxed{344}.
The textbook has 6 faces: top, bottom, front, back, left side, and right side.
The top and bottom faces have the same dimensions, so their surface area is:
2" x 14" = 28 square inches each.
The front and back faces have the dimensions 2" x 9", so their surface area is:
2" x 9" = 18 square inches each.
The left and right side faces have the dimensions 14" x 9", so their surface area is:
14" x 9" = 126 square inches each.
Therefore, the total surface area of the textbook is:
28 sq in + 28 sq in + 18 sq in + 18 sq in + 126 sq in + 126 sq in = 344 square inches. Answer: \boxed{344}.
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