Question

Need the answer for this

Answer 1

⇒The sum of the interior angles of a triangle is 180°

⇒Meaning (2x+9)°+(x-8)°+(x+13)°=180°

⇒Simplify the above equation to find the value of x.

⇒
`2x+x+x+9-8+13=180\\4x+14=180\\4x=180-14\\4x=166\\(4x)/(4) =(166)/(4) \\x=41.5`

∴ x=41.5

Answer 2

x = 41.5

Explanation:

the sum of the 3 angles in a triangle = 180°

sum the 3 angles and equate to 180

2x + 9 + x + 13 + x - 8 = 180 , that is

4x + 14 = 180 ( subtract 14 from both sides )

4x = 166 ( divide both sides by 4 )

x = 41.5