How do you find the complement and supplement of 150^circ150∘? Trigonometry Graphing Trigonometric Functions Applications of Radian Measure 1 Answer Dean R. Jun 14, 2018 Supplementary angles add up to 180^circ180∘ so the supplement is 30^circ.30∘. Complementary angles add to 90^circ90∘ so the complement is -60^circ.−60∘. Answer link Related questions What are some applications of using radian measure? How do you calculate the length of an arc and the area of a sector? How do you approximate the length of a chord given the central angle and radius? What are some example problems involving angular speed? How do you find the length of the chord of a circle with radius 8 cm and a central angle of 110^@110∘? How does sinx=0sinx=0 equals π? How do you write the function in terms of the cofunction of a complementary angle tan(pi/5)tan(π5)? What is the value of sin(pi/4)sin(π4)? What is the value of tan(pi/3)tan(π3)? What is the value of cos(7pi/4)cos(7π4)? See all questions in Applications of Radian Measure Impact of this question 6590 views around the world You can reuse this answer Creative Commons License