for the first six members in the series of alkenes plot the number of hydrogen atoms on they exist in use this number the graph to drive the formula of alkane that has 10 carbon atoms

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.