Question

formula for circumference of half circle ​

Answer 1

the circumference of half circle is 3πrsq.

Answer 2

Finding circumference of half circle:

Step-by-step explanation:

$\ find: \\\\\texttt{circumference of half-circle = ?}\\\\\ Solution:\\\\\ formula \ of \ circumference = \frac{\theta}{360} \times 2 \pi r\\\\\ where \ \theta \ is \ an \ angle \ and \ circumfrence \ of \ half \ circle \ is \ equal \ to:$

$\ circumference \ of \ circle = 2 \pi r\\\\ \ and \ half \ circle = \frac{1}{2}\\\\\ circumference \ of \ half-circle \ = 2 \pi r \times \frac{1}{2} \\\\\ circumference \ of \ half-circle \ = \pi r$

Learn more:

• Circumference: https://brainly.in/question/15655288