The answer of that is called a compatible number. I hope this helps! :)
Answer:
-4/3 radians
Step-by-step explanation:
let x = -240 degree
180 degree = π radians,
we want to convert x degrees to radians
x × π /180 radians
-240× π /180 radians
-4/3 radians
Reasons:
(1) Given
(2) their 2 non-common sides in 1 ray
(3) definition of: supplemental angles
(4) Substitution
(5) Opposite angles are congruent (equal)
(6) Substitution
(7) Definition of supplementary angles
To convert degrees to radians, multiply by π180° π 180 ° , since a full circle is 360° or 2π radians.