Answer:
[tex]sum \: of \: one \: exterior \: angle \: is \: \\ \\ equal \: to \: two \: opposite \: angle \: \\ \\ x + (x - 25) = 145 \\ \\x + x - 25 = 145 \\ \\ 2x - 25 = 145 \\ \\ 2x = 145 - 25 \\ \\ 2x = 120 \\ \\ x = 120 \div2 \: \\ \\ x = 70[/tex]
x = 85
Step-by-step explanation:
180 - 145 = 35
35 + (x-25) + x = 180 All angles added together should equal to 180
solve for x with calculator:
