True or false   A triangle with the sides 5,7 and  74−−√  is a Pythagorean triple. (1 point) Responses True True False

1 answer

To determine if the triangle with sides \( 5 \), \( 7 \), and \( \sqrt{74} \) is a Pythagorean triple, we need to check if the sum of the squares of the two shorter sides equals the square of the longest side.

Let's identify the longest side:

  • The sides are \( 5 \), \( 7 \), and \( \sqrt{74} \).
  • Since \( \sqrt{74} \approx 8.6 \), it is the longest side.

Now, we can set up the equation to check:

\[ 5^2 + 7^2 = (\sqrt{74})^2 \]

Calculating the squares:

\[ 5^2 = 25 \]

\[ 7^2 = 49 \]

\[ (\sqrt{74})^2 = 74 \]

Now add the squares of the two shorter sides:

\[ 25 + 49 = 74 \]

Since both sides are equal (\( 74 = 74 \)), we find that the triangle with these sides does indeed form a Pythagorean triple.

Thus, the statement is True.

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