The angle of a sector of a circle of diameter 8cm is 135°. Find the area of the sector [Take \(\pi\) = 22/7].
Area of a sector
\(\frac{θ}{360°} * πr^2\)
= \(\frac{135}{360} * 3.142 * 4 * 4\)
= \(18\frac{6}{7}cm^2\)
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