An airport is located at D(0,0) A plane is positioned at C(-9,-16). The radar at the airport covers the area xsquared+ysquared=324. Will the plane show up on the radar at its current position. Explain. I know it wont i just dont know how to mathematically justify that.
Here is another method: the radar covers an area of radius . So find the distance between the origin and the point and see if it is less than, equal to, or greater than 18.