Question

The diameter of a circle is 12 kilometers. What is the circle's circumference? Use 3.14 for ​.

Answer 1

CIRCUMFERENCE

» The diameter of a circle is 12 kilometers. What is the circle's circumference? Use 3.14.

• 
  `\blue{\bold{37.68 \: \:kilometers}}`

— — — — — — — — — —

Explanation:

To find the circumference, use pi (π), a mathematical constant. Its value is approximately equal to 3.14.

— Multiply the diameter with π in order to get the circumference of a Circle.

• 
  `\tt \: d = 12 km \\ \tt \: \: C = π × d \tt \\ \tt \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3.14×12 \: km \\ \tt \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \underline{ \boxed{ \purple{ \bold{ 37.68 \: km}}}}`

Therefore, the circumference of the circle is 37.68 kilometers.

_______________∞_______________

Answer 2

37.68km

Explanation:

c=2πr

thus

2×3.14×6= 37.68

alternative

c= πD

c= 3.14×12= 37.68km