Round 3897.24 to the nearest thousand

4000

Step-by-step explanation:

Round 3897.24 to the nearest thousand

Consider which number has the place value of thousand. The result is 3.

Now check the number after if it's 5 and above or below. If above add 1 to 3 but if below add 0.

Therefore

3897.27 to nearest thousand

= (3+1)000

= 4000

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360 different combinations

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: