Question

Pls someone help me!!

Answer 1

116°

Explanation:

Interior angles in a triangle are added up to 180°.

Therefore,

(14x + 4)° + (5x - 1)° + (2x + 9 )° = 180°

Now you can solve this equation and find the value of x.

`(14x + 4) + (5x - 1) + (2x + 9 ) = 180`

`14x+4+5x-1+2x+9=180`

`14x+5x+2x+4-1+9=180`

`21x+12=180`

`21x=180-12`

`21x=168`

`(21x)/(21)= (168)/(21)`

`x=8`

Now let's find the value of angle A

14x + 4

14 × 8 + 4

116°