TEST 1: Tell whether the following represent a POINT, a LINE or a PLANE:
1. TV screen___________________ 2. flag pole____________________ 3. calendar____________________ 4. star in the sky________________ 5. blackboard__________________ 6. tip of a ball pen_______________ 7. clothes line__________________ 8. needle _____________________ 9. flat wall_____________________ 10. threa______________________