Which of the following is a "rule" that you should pay attention to when taking photographs? Hand hold your camera when taking night photographs.
Put diagonal lines directly at the corners.
Make sure your lines are straight.
All of the above.

3. what is the output of the following statements? temporary object1; temporary object2("rectangle", 8.5, 5); temporary object3("circle", 6, 0); temporary object4("cylinder", 6, 3.5); cout < < fixed < < showpoint < < setprecision(2); object1.print(); object2.print(); object3.print(); object4.print(); object1.set("sphere", 4.5, 0); object1.print();