Can you help? i forgot how to find the surface area!
2 answers:
Answer:
To find the surface area of a cuboid, add the areas of all 6 faces. You can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.
Step-by-step explanation:
Answer:
Surface Area: 204mm^2
Step-by-step explanation:
The formula for the surface area of a rectangular prism is: 2(lw + wh +lh)
Our length, width and height are:
Length: 15mm
Width: 3mm
Height: 4mm
Then, we plug it in.
2(15x3 + 3x4 + 15x4)
2(30 + 12 + 60)
2(102)
204mm^2
Therefore, our surface area for the rectangular prism is 204mm^2.
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