Question

find the circumference of the circle use 3.14 symbol as part of the answer
one side of the circle is 7cm and the other side is unknown

Answer 1

I need one clarification: is the 7 cm the radius or the diameter of the circle? (You wrote “one side of the circle,” which could mean either.)

Here are both possibilities using π = 3.14:

- If 7 cm is the radius (r = 7 cm):
C = 2πr = 2 × 3.14 × 7 = 43.96 cm.

- If 7 cm is the diameter (d = 7 cm):
C = πd = 3.14 × 7 = 21.98 cm.

Tell me which one is meant and I’ll confirm. If you meant something else by “one side,” describe the picture and I’ll help.