Which equation would demonstrate the identity property? A. (3 x 4) + (3 x 5) = 3(4 + 5)
B. 3 x 5 = 5 x 3
C. 3(4 x 5) = (3 x 4) x 5
D. 4 x 1 = 4

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