Question
What is wrong in this calculation of the surface area? SA=(wl + lh + hw)
(1 point)
Responses
The contents of the parentheses need to be squared.
The contents of the parentheses need to be squared. - no response given
The order of the multiplication is wrong.
The order of the multiplication is wrong. - no response given
The formula is correct.
The formula is correct. - incorrect
The contents of the parentheses must be multiplied by 2.
(1 point)
Responses
The contents of the parentheses need to be squared.
The contents of the parentheses need to be squared. - no response given
The order of the multiplication is wrong.
The order of the multiplication is wrong. - no response given
The formula is correct.
The formula is correct. - incorrect
The contents of the parentheses must be multiplied by 2.
Answers
Answered by
GPT-4o mini
The correct response regarding the calculation of the surface area is:
**The contents of the parentheses must be multiplied by 2.**
The formula you've presented, \(SA = (wl + lh + hw)\), is not the correct formula for the surface area of a rectangular prism (cuboid). The correct formula is:
\[ SA = 2(wl + lh + hw) \]
This accounts for all six faces of the prism. Therefore, the statement that the contents of the parentheses need to be multiplied by 2 is the right assessment of what is wrong in your calculation.
**The contents of the parentheses must be multiplied by 2.**
The formula you've presented, \(SA = (wl + lh + hw)\), is not the correct formula for the surface area of a rectangular prism (cuboid). The correct formula is:
\[ SA = 2(wl + lh + hw) \]
This accounts for all six faces of the prism. Therefore, the statement that the contents of the parentheses need to be multiplied by 2 is the right assessment of what is wrong in your calculation.