Distance of lake a is 200 km at 20 degree north of east
distance between lake a and b is 230 km at 30 degree west of north
now the distance between base and lake b is given as

given that




now the total distance is


now the magnitude of the distance is given as


also the direction is given as


<em>so it is 277.4 km at 74.7 degree North of East</em>
Answer:
the height of a object or point relation to sea level or ground level
Electromagnectic Waves Travel In A Vacuum
Answer:
all of above I think sorry if I'm not right but I tried