To calculate the area of a rectangle, you need to multiply the length by the width. In this case, the length of the rectangle is given as 6 cm, and the width is 3.5 cm. Using the formula:
Area = Length × Width
Substituting the given values:
Area = 6 cm × 3.5 cm
Calculating the product:
Area = 21 cm²
Therefore, the area of the rectangle with dimensions 6 cm by 3.5 cm is 21 square centimeters (cm²).