Darren bends a piece of wire using a circular disc to make the shape as shown.
A. How long does the piece of wire need to be
to make the shape? Explain.
22 cm
100 cm
B. Construct Arguments What information do
you think is needed to find part of the
circumference of a circle? Justify your answer.

the wire is 134.54 because you add 100 and the other part of the wire which is 34.54. You find this by finding a quarter of the circumference. The center of the circle is needed to find part of the circumference.

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.