Answer:
21.5
Step-by-step explanation:
Counting the full squares: 16
Counting the squares that are more than 1/2: 6
The best estimate would be 21.5
Answer: 31824010600
Step-by-step explanation: 3182400060 tens and 100 hundreds = 31824010600.
A circle has infinit lines of symmetry. They pass through the centre of the circle and are the circle's diameter.
Hope this helps! (: