The diagram shows a rectangular cardboard from which a semi-circle is cut off. Calculate the area of the remaining part
-
A.
44cm2 -
B.
99cm2 -
C.
154cm2 -
D.
165cm2
Correct Answer: Option B
Explanation
Area of remaining = Area of rectangle = Area of semi-circle
22 x 8 – (frac{1}{2})xar2
ehere r – (frac{14}{2})cm = 7cm
Area of remaining = 176 – (frac{1}{2}) x (frac{22}{4}) x 7 x 7
= 176 – 77
= 99cm2