Question

I really need help pls!!

Answer 1

Answer:

$116 \degree$

Step-by-step explanation:

Interior angles of a triangle is added up to 180°

Therefore,

$14 x + 4 + 5x - 1 + 2x + 9 = 180 \degree$

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

$14 x + 4 + 5x - 1 + 2x + 9 = 180 \degree \\ 14x + 5x + 2x + 4 - 1 + 9 = 180 \\ 21x + 12 = 180 \\ 21x = 180 - 12 \\ 21x = 168 \\ \frac{21x}{21} = \frac{168}{21} \\ x = 8$

Now you can Find the value of <A

$14x + 4 \\ 14 \times 8 + 4 \\ 112 + 4 \\ = 116 \degree$

Hope this helps you.

Let me know if you have any other questions :-):-)

Answer 2

Answer:

116

Step-by-step explanation:

First, find x. The three angles of any triangle will always equal 180, so set up an equation like this:

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

x=8

Then to find angle A put 8 in place of x. 14(8)+4=116