Pi was discovered way back already the way to Babylonians and Egyptians 216 BC but none were all the way accurate they were close
Step-by-step explanation:
Since, K is the midpoint of JL.

Answer:
The answer is b I hope this helps sorry if it doesn't
Step-by-step explanation:
Answer: 14cm
Step-by-step explanation:
The diameter of a circle is twice the radius.
Therefore, the diameter = 2*7 cm = 14cm