The combination of parallel river banks and a perpendicular turn results in the driver's right turn forming a 90-degree angle with the river after crossing the bridge.
The driver's right turn after crossing the bridge makes a 90-degree angle with the river. Here's why:
Parallel river banks: This implies that the bridge and Northbridge Road are also parallel to the river.
Perpendicular turn: When the driver turns right onto Northbridge Road, they are making a turn that is perpendicular to the pre-existing path (the bridge).
Properties of perpendicular lines: Perpendicular lines intersect at a 90-degree angle.
Therefore, the combination of parallel river banks and a perpendicular turn results in the driver's right turn forming a 90-degree angle with the river after crossing the bridge.
Question
A driver crosses a bridge over a river with parallel banks. After crossing the bridge, the driver makes a right turn onto Northbridge Road, which is perpendicular to the river. What angle does the driver's right turn make with the river after crossing the bridge?