Answer:
c) 135°
b) 72°
d) 90°
a) 115°
Step-by-step explanation:
A supplementary pair are two angles whose measures added is equal to 180°. Set an equation with the given values plus a number (the other angle) equal to 180:
c) [tex]x+45=180[/tex]
Solve. Subtract 45 from both sides:
[tex]x+45-45=180-45\\\\x=135[/tex]
The supplement is 135°
b) [tex]108+x=180[/tex]
Solve. Subtract 108 from both sides:
[tex]108-108+x=180-108\\\\x=72[/tex]
The supplement is 72°
d) [tex]x+90=180[/tex]
Solve. Subtract 90 from both sides:
[tex]x+90-90=180-90\\\\x=90[/tex]
The supplement is 90°
a) [tex]x+65=180[/tex]
Solve. Subtract 65 from both sides:
[tex]x+65-65=180-65\\\\x=115[/tex]
The supplement is 115°
:Done
