How to find Lateral area of this rectangular prism??Plzz help me it is due tomorrow!!

Mathematics

1 answer:

yaroslaw [1]3 years ago

6 0

Answer:

132 square millimeters

Step-by-step explanation:

THe lateral area of a rectangular prism is the side areas. That is

all 4 sides of the rectangular prism (that are rectangles each).

So, we find each side area and add them up.

The area of a rectangle is:

Area = length * width

The left side (in gray) is 9 mm x 3mm, so area:

area = 9 * 3 = 27

The right side rectangle is same, so that would have an area of:

area = 9 * 3 = 27

Now, the front side's measurement is 3 x 13, so the area is:

Area = 3 * 13 = 39

THe back is same, so the area would be:

Area = 3 * 13 = 39

Total Surface Area = 27 + 27 + 39 + 39 = 132 square millimeters

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