[mikets]

A simple way, not necessarily the best way, is to do the following:

float targetAngle = gyro.GetAngle() + 45.0;
 
while (gyro.GetAngle() < targetAngle)
{
    //
    // Turn the robot to the right at half speed.
    //
    myRobot.ArcadeDrive(0.0, 0.5);
}
//
// Go straight at half speed.
//
myRobot.ArcadeDrive(0.5, 0.0);
Wait(3.0);
//
// Stop.
//
myRobot.ArcadeDrive(0.0, 0.0);