What multiplies to be 280 and adds to be negative 36

In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

20 points! asap! a is known to be 6,500 feet above sea level; ab = 600 feet. the angle at a looking up at p is 20°. the angle at b looking up at p is 35°. how far above sea level is the peak p? find the height of the mountain peak to the nearest foot. height above sea level =

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference