What is the diameter of a circle of area 77cm2 [Take \(\pi = \frac{22}{7}\)]
a
\(\frac{\sqrt{2}}{7}cm\)
b
\(3\frac{1}{2}cm\)
c
7cm
d
\(7\sqrt{2}cm\)
Explanation
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\(\frac{\sqrt{2}}{7}cm\)
\(3\frac{1}{2}cm\)
7cm
\(7\sqrt{2}cm\)
No video available
