44cm2
99cm2
154cm2
165cm2
Correct answer is B
Area of remaining = Area of rectangle = Area of semi-circle
22 x 8 - 12xar2
ehere r - 142cm = 7cm
Area of remaining = 176 - 12 x 224 x 7 x 7
= 176 - 77
= 99cm2
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