A population at Hardy-Weinberg Equilibrium: Question 4 options: a) can pass genes back and forth with other populations through migration. b) is subject to evolution by genetic drift. c) has no evolutionary forces acting upon it. d) probably does not exist in natural system.

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.

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation:

c

step-by-step explanation: