If I round 2,420 to the nearest ten thousand

1 answer:

5 0

If I round 2,420 to the nearest ten thousand. Yet this number is lacking a digit or rather is incomplete.
Assuming that we add three zeros to the digit number thus becomes, 2,420,000 and we want to round it off to the nearest ten thousand it will be 2,420,000 the same digit.
But if we add only one zero to complete the digit, 24,200 the number becomes 20,000.

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5, 8, 13 are no dice, namely 5² + 8² ≠ 13

25, 64, 17 is are no dice too, because 25² + 17² ≠ 64²

however, 5,12 and 13 are indeed a pythagorean triple

also is 39, 80, 89.

when looking for a pythagorean triple, recall that c² = a² + b².

so the longest leg is the sum of the square of the small ones.

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