If the circumference of the circle below is 64 cm, what is the length of xy , in centimeters? Do not include units in your answer.

Question

anonymous · Answer

@ganeshie8

anonymous · Answer

circle please :)

anonymous · Answer

attachment

phi · Answer

Do you know how many degrees to go all the way around the circle ?

anonymous · Answer

360

phi · Answer

and in the arc, you go 45º
what fraction of the whole way around is that ?

anonymous · Answer

1/8

phi · Answer

so the length of the arc is ⅛ of the circumference of the circle

anonymous · Answer

how do you say that in centimeters

phi · Answer

they tell you all the way round is 64 cm

⅛ of 64 cm  is  64/8 cm  or 8 cm

notice they say
Do not include units in your answer.

they want just the number

phi · Answer

the units do not change.
it's just like  ½ of 12 inches  is 6 inches

or ½ of 10 ounces is 5 ounces

or ⅛ of 64 cm is 8 cm