Question

One angle of a triangle measures 30° and the other two angles are in the ratio 3 : 2. Find these
angles.​

Answer 1

Solution:

One angle = 30°

Let the common factor be x

•°• By angle sum property theorem,

$30 + 3x + 2x = 180 \\ 5x = 150 \\ x = 30$

Two angles will be

$2x = 2(30) = 60 \\ 3x = 3(30) = 90$

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Answer 2

Answer:

Sum of angles of a triangle =180

30+3x+2x  =180

5x=180-30

5x=150

x=150/5

x=30

  3x=3x30

       =90

  2x=2x30

      =60