the associative property of addition. Try and memorize the different properties. youll need to know them later on. I hope this helped!
Actually I don't know the answer but what I thing is none of the above.
Calculate the circumference of the full circle:
circumference = PI x diameter = 3.14 x 20 = 62.8 inches
the arc length is 160 degrees of the full circle
divide 160 by 360 (full circle) and multiply by the circumference:
160/360 x 62.8 = 27.9 inches
Answer:
1. 144 2.16 3. 1 4. 1.69
Step-by-step explanation: