the diameter of a circle is 0.65m what is the circumference of the circle

Question

i need help in school.

Answer 1

Diameter (d ) = 2r = 0.65 m.

Radius (r ) = d /2

                = 0.65/2

                = 0.325 m.

Circumference of a circle is 2πr

Substitute π = 3.14 and r = 0.325.

= 2(3.14)(0.325)

= 2.041 m.

Circumference of a circle is 2.041 m.