Final answer:
To find the area of a rectangle with given length and width, multiply the length by the width.
Step-by-step explanation:
To find the area of a rectangle, we need to multiply its length by its width. In this case, the length is given as 0.3 meters and the width is given as 12 cm. However, we need to ensure that both measurements are in the same unit. So, we should convert the width to meters by dividing it by 100. This gives us a width of 0.12 meters.
Now, we can multiply the length (0.3 m) by the width (0.12 m) to find the area. The formula for the area of a rectangle is A = l * w, where A is the area, l is the length, and w is the width. Plugging in the values, we have A = 0.3 * 0.12 = 0.036 square meters.
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