Geometry Part 2

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A triangle has side lengths 10,15,and 7.Is the triangle acute,obtuse,or right?Explain.

  • Geometry Part 2 -

    if ABC is a right triangle (B = 90°),
    7^2 + 10^2 = 15^2
    but 149 < 225, so B < 90° and ABC is acute

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