Question

Use the diagram to find the angle measures

of the triangle. Recall that the sum of the
angle measures of a triangle is 180º.
9x
(x+4)
.
x =
(x+4)° = °
9x =

Answer 1

x=16

(x+4)=20

9x=144

Explanation:

9x+x+4+x=180

11x+4=180

11x=180-4

11x=176

`x = (176)/(11)`

x=16