The side lengths of a rectangle are 4 1/2 cm and 2 2/5 cm. What is the area of the rectangle?

10.8 or 10 4/5

Step-by-step explanation:

4 1/2 * 2/25 = 10 4.5

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6