Question

The radius of a circle is 1 yard. What is the circle's circumference?
r=1 yd
Use 3.14 for ​.

Answer 1

Circumstance is 2 x Pi x r

2 x 3.14 x 1
Circumstance = 6.28 yd

Answer 2

The circumference of the circle is 6.28 yards.

What is circumference of the circle?

"It  is the length of the boundary of the circle."

Formula to calculate the circumference of the circle:

C = 2 × π × r, where 'r' is the radius of the circle.

For given example,

r = 1 yd.

π = 3.14

Using the formula for the circumference of circle,

⇒ C = 2 × π × r

⇒ C = 2 × 3.14 × 1

⇒ C = 6.28 yd.

Therefore, the circumference of the circle is 6.28 yards.

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