Smh does anyone know what dis is?

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

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?

Find the arc length of the semicircle. 7the grade