Question

3. If the angles of triangle are in the
ratio 3.4.5, the measure of greatest
angle is​

Answer 1

Step-by-step explanation:

Sum of the all three angles of any triangle are 180° . So, 3x + 4x + 5x = 180°

12x = 180°

x = 15°

The angles are 45° , 60° & 75° .

The greatest angle is 75° .

Answer 2

Answer:

75⁰

Step-by-step explanation:

sum of angles of a triangle is always 180⁰

:. 3x+4x+5x=180⁰

12x=180⁰

x=180/12

:.x=15

greatest angle = 5x⁰=5×15=75⁰

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