The circumference of a circle is 6.5 cm. What is its diameter?

2 Answers
Junaid Mirza
Jun 5, 2018

#"2.07 cm"#

Explanation:

If #"d"# is the diameter of a circle then its circumference is given by

#"C = πd"#

From above

#"d"= "C"/π#

#color(white)("d") = "6.5 cm"/3.14#

#color(white)("d") = 2.07\ "cm"#

Jim G.
Jun 5, 2018

#~~2.07" cm to 2 dec. places"#

Explanation:

#"the circumference (C) of a circle is calculated using"#

#•color(white)(x)C=pidlarrcolor(blue)" d is the diameter"#

#"here "C=6.5#

#pid=6.5#

#"divide both sides by "pi#

#d=6.5/pi~~2.07#

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