Question

in a triangle the measures of the angles are x, 3x and x+30 find the angles​

Answer 1

$\huge\colorbox{cyan} {Answer}$

Sum of angles in a triangle = 180°

= x + 3x + x + 30 = 180°

= 5x + 30 = 180°

= 5x = 180 - 30

= 5x = 150

$= x = \cancel \frac{150}{5}$

➪ x = 30

➪ 3x = 3 × 30 = 90

➪ x + 30 = 30 + 30 = 60

Answer 2

Answer:

$\huge\colorbox{green} {Answer}$

Sum of angles in a triangle = 180°

= x + 3x + x + 30 = 180°

= 5x + 30 = 180°

= 5x = 180 - 30

= 5x = 150

$= x = \cancel \frac{150}{5}$

➪ x = 30

➪ 3x = 3 × 30 = 90

➪ x + 30 = 30 + 30 = 60