How are perpendicular lines and interesting like alike? how are they different

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

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

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°