I need help with this

State if the two triangles are congruent. if they are, state how you know?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?