Question

find the angle of triangle which are in the ratio of 3 :4 :5

Answer 1

Answer:

$3x + 4x + 5x = 180 \\ 12x = 180 \\ x = 180 \div 12 \\ x = 15$

$3x = 3 \times 15 = 54 \\ 4x = 4 \times 15 =$

Answer 2

Answer:

The Angles Be X

Now taking the ratios

Angle 1 = 3X

Angle 2 = 4X

Angle 3 = 5X

Now Adding these values we get the total Angle of the triangle I.e 180°(Angle sum property of Traingle)

3X+4X+5X=180°

12X=180°

X=15°

Therefore the Angles are 3X= 3×15= 45°

4X=4×15=60°

5X=5×15=75°

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