Length of rectangle(l) = 14 cm
Breadth = 7 cm
Radius of quarter circle r_{1} = 7 cm
Radius of semi-circle r_{2} = 7/2 cm
Area of remaining portion = Area of rectangle – (area of quadrant + area of semicircle)
= l × b – (πr_{1}^{2}/4 + πr_{2}^{2}/2)
= 14 × 7 – (22/7 × 1/4 × 7 × 7 + 22/7 × ½ × 7/ 2 × 7/2)
= 98 – 77/2 – 77/4
= (392 – 154 – 77)/4 = 161/4
= 40 ¼ sq. units