Question

What's the circumference of a circle with a diameter of 9 inches?

Use 3.14 for π.
C = [?] inches
Enter the number that belongs in the green box. Do not round your answer.
Hint: C = πd

Answer 1

`\rule{300}{1}\\\dashrightarrow\large\blue\textsf{\textbf{\underline{Given question:-}}}`

What's the circumference of a circle with a diameter of 9 inches?

`\dashrightarrow\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}`

We are asked to find the circumference of a circle, which we can find using the following formula:-

`\bold{Circumference{(circle)}=\pi d}`

• Where:-
• π=pi [3.14…]
• d=diameter (9 inches)

How to solve for circumference:-

• Replace d with 9 and multiply:-

`\hookrightarrow\sf{C=3.14*9}`

`\bigstar` On simplification,

`\hookrightarrow\sf{C=28.26\:inches}`

Notice that we are not asked to round our answer, so we leave it like that - C=28.26.

Good luck with your studies.

`\rule{200}{2}`

Answer 2

C = 28.26 in

Explanation:

the circumference (C) is calculated as

C = πd ( d is the diameter ) , then

C = 3.14 × 9 = 28.26 in