Adesigner needs to create perfectly circular necklace. the necklace each need to have a radius of 10cm. what is the largest number of necklaces that can be made from 1000cm of wire 1)15 2)16 3)31 4)32

1)15

The formula for the circumference of a circle is 2π x r
r must always be 10cm

2π x 10 = 62.8cm
This is how much wire is needed to make each necklace

1000/62.8 = 15.92
This is how many necklaces can be made, however since there are only 15 whole necklaces the answer is 15.

We are short 0.008cm to make the 16th one.