A square of side 8 cm has a quarter circle of radius 8 cm cut out from one corner. What is the area of the shaded region (the square minus the quarter circle)?
A 13.76 cm2
B 25.12 cm2
C 50.24 cm2
D 64.00 cm2
SAMPLE 2
A rectangle measures 10 cm by 4 cm. A semicircle is attached to one of the 4 cm sides. What is the total area of the figure?
A 62.80 cm2
B 52.56 cm2
C 46.28 cm2
D 40.00 cm2
SAMPLE 3
A circle of radius 5 cm is placed inside a rectangle measuring 12 cm by 10 cm. What is the area outside the circle? (Use π = 3.14)
A 61.50 cm2
B 41.50 cm2
C 120.00 cm2
D 78.50 cm2
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