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Anarel [89]
3 years ago
9

A triangle has sides of lengths 4, 3, and 5. Is it a right triangle? Explain.

Mathematics
1 answer:
vlada-n [284]3 years ago
7 0

Answer:

yes; 4² + 3² = 5²

Step-by-step explanation:

Pythagorean theorem.

In a right triangle the square of the hypotenuse is equal to  the sum of the squares of the other two sides. Hypotenuse is the longest side of the triangle.

4² + 3² = 5²

16 + 9 = 25

25 = 25  

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For this case we must indicate the cosine of A, of the figure shown. By definition:

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Answer:

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