A circle has a diameter of 6 millimeters. What are the circumference and area of the circle? Use three point one four for pi. Round to the nearest tenth.
Answer

eighteen point eight millimeters; twenty-eight point three square millimeters

nine point four millimeters; twenty-eight point three square millimeters

eighteen point eight millimeters; one hundred thirteen point zero square millimeters

nine point four millimeters; one hundred thirteen point zero square millimeters

Question

A circle has a diameter of 6 millimeters. What are the circumference and area of the circle? Use three point one four for pi. Round to the nearest tenth.
Answer
		
eighteen point eight millimeters; twenty-eight point three square millimeters
		
nine point four millimeters; twenty-eight point three square millimeters
		
eighteen point eight millimeters; one hundred thirteen point zero square millimeters
		
nine point four millimeters; one hundred thirteen point zero square millimeters

anonymous · Answer

io give medals

jdoe0001 · Answer

circumference of a circle => $\bf 2\pi r$
r = radius

anonymous · Answer

so its the 3rd one

jdoe0001 · Answer

area of a circle => $\bf \pi r^2$

anonymous · Answer

is it the 1st one

jdoe0001 · Answer

hmmm, the diameter is 6, radius is half the diameter

anonymous · Answer

so what is it

jdoe0001 · Answer

well, what did you get for the circumference?
what did you get for the area?

anonymous · Answer

3

jdoe0001 · Answer

what did you get for the radius?

anonymous · Answer

21

jdoe0001 · Answer

so the diameter is 6, half of that is the radius
so half of 6 is 21?