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  1. The sides of a triangle are in the ratio 3 : 4 : 5. The measure of the largest angle of the triangle is
    1. 60°
    2. 90°
    3. 120°
    4. 150°
Correct Option: B

Let the sides of triangle be 3x, 4x and 5x. Here,
(3x)² + (4x)² = (5x)²
∴ The triangle is right angled. Hence, the largest angle = 90°



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