Divide by 50 then divide by ten then just add that to 68 the divide by 5
Answer: <em>1=60°</em>
Step-by-step explanation:
<em>First, let's take our given angle of 30°</em>
<em>30° is in a right triangle, so the angles must be 90°, 60°, and 30°</em>
<em>Now the angle that is 45° makes angle 1 congruent to angle 60°</em>
<em>Meaning angle 1 is </em><em>60°</em>
Sum of two Interiors=Exterior
![\\ \rm\rightarrowtail x+20+3x-7=7x-17](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Crightarrowtail%20x%2B20%2B3x-7%3D7x-17)
![\\ \rm\rightarrowtail 4x+13=7x-17](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Crightarrowtail%204x%2B13%3D7x-17)
![\\ \rm\rightarrowtail -3x=-30](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Crightarrowtail%20-3x%3D-30)
![\\ \rm\rightarrowtail x=10](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Crightarrowtail%20x%3D10)
m<NOP=7(10)-17=70-17=53