What is the coordinate of the midpoint of line segment ab? explain how you found your answer

What is the measure of angle afe? 79 81 91 99

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

Which statements are true about additional information for proving that the triangles are congruent check all that apply