Question

THREE ANGLES OF A SCALENE TRIANGLE ARE IN THE RATIO 3:4:5. FIND THE MEASURES OF THESE ANGLES.

Answer 1

Answer:

let the angle of a scalene triangle be 3x, 4x, 5x.

according to the Question.

sum of angle of a triangle = 180°

angle a+ angle b+ angle c = 180°

3x + 4x + 5x =180°

12x = 180°

x = 180°/12

x = 15°

then,

3×x = 3×15°= 45°

4×x = 4×15°= 60°

5×x = 5×15°= 75°

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