Final answer:
The area of the rectangle is 720 cm².
Step-by-step explanation:
To find the area of a rectangle, you multiply the length by the width. In this case, since the length is 40 centimeters and the width is 18 centimeters, you would multiply these values together: 40 * 18 = 720 cm². Therefore, the correct answer is option C. 720 cm².
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