Round 5,766 to the nearest thousand

6000

Step-by-step explanation:

5,766

you look at the thousands place which is 5. We want to round that so look at the next place value which is 7. That is greater then the general number 5. So we round up to 6000.

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step-by-step explanation:

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