ABC is a right triangle right angles at A and AD BC. Then, BD/DC=?

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

How do you find the circumfrance of a circle?

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?