I think the answer is b. cos(pi theta)= -0.6
Answer:no because 2 sides of a triangle have to be equal to the other angle or greater than the other angle
Step-by-step explanation:
Answer:
Incident ray, the reflection ray and the normal to thereflection surface at the point of the incidence lie in the same plane
-3,-7.5,2 2/3 are the opposites of those numbers