Question

Three cities X,Y, and Z are connected by straight highways. City X is 6 km from city Y, city Y is 4 km from city Z, and city X is 5 km from city Z. Find the angle made by the highways XY and YZ?
sha
Three cities X,Y, and Z are connected by straight highways. City X is 6 km from city Y, city Y is 4 km from city Z, and city X is 5 km from city Z. Find the angle made by the highways XY and YZ?
sha
physics