Which number is a natural number?

10

5.5

–45

0

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

answer: i'm great at algebra

~coco

step-by-step explanation:

1; 35 is the ratio

step-by-step explanation: