svarner2001
02.06.2020 •
Mathematics
The diameter of a circle measures 8 cm. What is the circumference of the circle?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.
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Ответ:
25.12 cm
Step-by-step explanation:
The formula for the circumference of a circle is
, when r = the radius.
Diameter = 2 x radius = 8 cm. Therefore, the radius = 4 cm.
Plug r = 4 cm in to the circumference formula:
= 8 x 3.14 = 25.12 cm.
Ответ: