Does anyone know how to solve this using the methods of interval?

I’m which figure is point g an orthocenter

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made