The surface area of a rectangular prism can be calculated using the formula: 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.
In this case:
l = 18 mm
w = 2 mm
h = 10 mm
Surface area = 2(18)(2) + 2(18)(10) + 2(2)(10)
Surface area = 36 + 360 + 40
Surface area = 436 mm²
Therefore, the surface area of the rectangular prism is 436 mm².
Find the surface area of a rectangular prism whose length is 18 millimeters, height is 10 millimeters, and width is 2 millimeters.(1 point)
____mm2
3 answers
no
I apologize for the mistake in my previous calculation. Let's calculate the surface area correctly this time.
Given:
Length = 18 mm
Width = 2 mm
Height = 10 mm
The formula for the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh
Plugging in the values:
Surface Area = 2(18*2) + 2(18*10) + 2(2*10)
Surface Area = 2(36) + 2(180) + 40
Surface Area = 72 + 360 + 40
Surface Area = 472 mm²
Therefore, the correct surface area of the rectangular prism is 472 mm².
Given:
Length = 18 mm
Width = 2 mm
Height = 10 mm
The formula for the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh
Plugging in the values:
Surface Area = 2(18*2) + 2(18*10) + 2(2*10)
Surface Area = 2(36) + 2(180) + 40
Surface Area = 72 + 360 + 40
Surface Area = 472 mm²
Therefore, the correct surface area of the rectangular prism is 472 mm².