text: # The radius of the circle is 4 cm, which is equal to the diameter of this circle.
  
  In order to find out what the diameter of a circle is, if you know its radius, you should remember the rule.
  According to this rule, the diameter of a circle is equal to the sum of two radii of a given circle or two radii.
  Let’s write down the formula.
  D = 2R, where D is the diameter of the circle and R is its radius.
  Now let’s write down and calculate.
  D = 2R.
  D = 2 × 4.
  D = 8 (cm).
metadata: {"found_math": false, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0}