To find the surface area of the prism, we need to calculate the area of each of its six faces and then sum them up.
The dimensions of the prism are 15 mm, 4 mm, and 3 mm.
First, let's find the area of the two largest faces that have dimensions 15 mm x 4 mm:
Area = length × width
Area = 15 mm × 4 mm = 60 mm²
Since there are two of these faces, their total area is 2 × 60 mm² = 120 mm².
Next, let's find the area of the two medium faces that have dimensions 15 mm x 3 mm:
Area = length × width
Area = 15 mm × 3 mm = 45 mm²
Since there are two of these faces, their total area is 2 × 45 mm² = 90 mm².
Finally, let's find the area of the two smallest faces that have dimensions 4 mm x 3 mm:
Area = width × depth
Area = 4 mm × 3 mm = 12 mm²
Since there are two of these faces, their total area is 2 × 12 mm² = 24 mm².
Now, we just need to add up the area of all the six faces:
Surface area = 120 mm² + 90 mm² + 24 mm² = 234 mm²
So, the surface area of the prism is 234 mm².
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15 MM
4 MM
3 MM
WHAT IS THE SURFACE AREA OF THE PRISM?
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