Mathematics
NULL
Medium
Question
If the area of a circle is 616 cm², then its circumference is?
A
78 cm
B
88 cm
✓ Official correct answer
C
75 cm
D
70 cm
Community credibility
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A
78 cm
No member explanations yet for this option.
B
88 cm
No member explanations yet for this option.
C
75 cm
No member explanations yet for this option.
D
70 cm
No member explanations yet for this option.
Explanation
πr² = 616 ⇒ r = 14 cm. Circumference = 2πr = 88 cm.