Answer: [tex]z=91.6[/tex]
Step-by-step explanation:
A pentagon has 5 sides and 5 angles and equals up to 540 degrees
So we need to make the equation of
[tex]145+120.1+112.3+71+z=540[/tex]
[tex]448.4+z=540[/tex]
[tex]448.4+z=540\\-448.4 = -448.4[/tex]
[tex]z=91.6[/tex]c
To check work just plug in 91.6 for z in the equation that was created [tex]145+120.1+112.3+71+91.6=540[/tex]
