Is it possible to construct a triangle with the given lengths? 15,37,53

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

Construct the graph that models the given situation

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)